Home / 724,617,962.10-1,086,926,943.15-612,377,622.90

Finding the Fourth Proportional to 724,617,962.10, 1,086,926,943.15 and 612,377,622.90

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Solution

The fourth proportional to 724,617,962.10, 1,086,926,943.15 and 612,377,622.90 is: 918,566,434.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,617,962.10 : 1,086,926,943.15 = 612,377,622.90 : x
  2. Step 2: Convert to fraction form
    724,617,962.10/1,086,926,943.15 = 612,377,622.90/x
  3. Step 3: Cross multiply
    724,617,962.10x = 1,086,926,943.15 × 612,377,622.90
  4. Step 4: Simplify right side
    724,617,962.10x = 665,609,737,712,160,512
  5. Step 5: Solve for x
    x = 665,609,737,712,160,512/724,617,962.10
  6. Step 6: Final answer
    x = 918,566,434.35

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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.