Home / 425,683,428,747.12-638,526,799,714.20-102,985,724,503.73

Finding the Fourth Proportional to 425,683,428,747.12, 638,526,799,714.20 and 102,985,724,503.73

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Solution

The fourth proportional to 425,683,428,747.12, 638,526,799,714.20 and 102,985,724,503.73 is: 154,478,987,535.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,683,428,747.12 : 638,526,799,714.20 = 102,985,724,503.73 : x
  2. Step 2: Convert to fraction form
    425,683,428,747.12/638,526,799,714.20 = 102,985,724,503.73/x
  3. Step 3: Cross multiply
    425,683,428,747.12x = 638,526,799,714.20 × 102,985,724,503.73
  4. Step 4: Simplify right side
    425,683,428,747.12x = 65,759,145,083,614,976,278,528
  5. Step 5: Solve for x
    x = 65,759,145,083,614,976,278,528/425,683,428,747.12
  6. Step 6: Final answer
    x = 154,478,987,535.78

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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.