Home / 749,088,001.90-1,123,632,002.85-386,290,945.90

Finding the Fourth Proportional to 749,088,001.90, 1,123,632,002.85 and 386,290,945.90

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Solution

The fourth proportional to 749,088,001.90, 1,123,632,002.85 and 386,290,945.90 is: 579,436,418.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,088,001.90 : 1,123,632,002.85 = 386,290,945.90 : x
  2. Step 2: Convert to fraction form
    749,088,001.90/1,123,632,002.85 = 386,290,945.90/x
  3. Step 3: Cross multiply
    749,088,001.90x = 1,123,632,002.85 × 386,290,945.90
  4. Step 4: Simplify right side
    749,088,001.90x = 434,048,869,224,437,952
  5. Step 5: Solve for x
    x = 434,048,869,224,437,952/749,088,001.90
  6. Step 6: Final answer
    x = 579,436,418.85

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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.