Home / 1,420,340,294.70-1,959,985,030.50-785,222,733.60

Finding the Fourth Proportional to 1,420,340,294.70, 1,959,985,030.50 and 785,222,733.60

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Solution

The fourth proportional to 1,420,340,294.70, 1,959,985,030.50 and 785,222,733.60 is: 1,083,560,615.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,340,294.70 : 1,959,985,030.50 = 785,222,733.60 : x
  2. Step 2: Convert to fraction form
    1,420,340,294.70/1,959,985,030.50 = 785,222,733.60/x
  3. Step 3: Cross multiply
    1,420,340,294.70x = 1,959,985,030.50 × 785,222,733.60
  4. Step 4: Simplify right side
    1,420,340,294.70x = 1,539,024,803,464,289,536
  5. Step 5: Solve for x
    x = 1,539,024,803,464,289,536/1,420,340,294.70
  6. Step 6: Final answer
    x = 1,083,560,615.16

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Half scale
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Double scale
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Similar ratio
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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.