Home / 39,392,549,330.76-54,361,646,211.87-21,328,063,328.25

Finding the Fourth Proportional to 39,392,549,330.76, 54,361,646,211.87 and 21,328,063,328.25

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Solution

The fourth proportional to 39,392,549,330.76, 54,361,646,211.87 and 21,328,063,328.25 is: 29,432,688,483.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,392,549,330.76 : 54,361,646,211.87 = 21,328,063,328.25 : x
  2. Step 2: Convert to fraction form
    39,392,549,330.76/54,361,646,211.87 = 21,328,063,328.25/x
  3. Step 3: Cross multiply
    39,392,549,330.76x = 54,361,646,211.87 × 21,328,063,328.25
  4. Step 4: Simplify right side
    39,392,549,330.76x = 1,159,428,633,034,685,153,280
  5. Step 5: Solve for x
    x = 1,159,428,633,034,685,153,280/39,392,549,330.76
  6. Step 6: Final answer
    x = 29,432,688,483.79

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Half scale
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Double scale
Find fourth proportional to 39,392,549,331.76, 54,361,646,213.25 and 21,328,063,329.25
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.