Home / 1,020,349,218.90-1,530,523,828.35-816,275,874.90

Finding the Fourth Proportional to 1,020,349,218.90, 1,530,523,828.35 and 816,275,874.90

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Solution

The fourth proportional to 1,020,349,218.90, 1,530,523,828.35 and 816,275,874.90 is: 1,224,413,812.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,349,218.90 : 1,530,523,828.35 = 816,275,874.90 : x
  2. Step 2: Convert to fraction form
    1,020,349,218.90/1,530,523,828.35 = 816,275,874.90/x
  3. Step 3: Cross multiply
    1,020,349,218.90x = 1,530,523,828.35 × 816,275,874.90
  4. Step 4: Simplify right side
    1,020,349,218.90x = 1,249,329,677,041,693,440
  5. Step 5: Solve for x
    x = 1,249,329,677,041,693,440/1,020,349,218.90
  6. Step 6: Final answer
    x = 1,224,413,812.35

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.