Home / 418,799,121.39-628,485,616.49-146,169,888.39

Finding the Fourth Proportional to 418,799,121.39, 628,485,616.49 and 146,169,888.39

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Solution

The fourth proportional to 418,799,121.39, 628,485,616.49 and 146,169,888.39 is: 219,354,978.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,799,121.39 : 628,485,616.49 = 146,169,888.39 : x
  2. Step 2: Convert to fraction form
    418,799,121.39/628,485,616.49 = 146,169,888.39/x
  3. Step 3: Cross multiply
    418,799,121.39x = 628,485,616.49 × 146,169,888.39
  4. Step 4: Simplify right side
    418,799,121.39x = 91,865,672,416,332,784
  5. Step 5: Solve for x
    x = 91,865,672,416,332,784/418,799,121.39
  6. Step 6: Final answer
    x = 219,354,978.85

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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.