Home / 418,701,759.13-628,146,305.17-127,591,665.35

Finding the Fourth Proportional to 418,701,759.13, 628,146,305.17 and 127,591,665.35

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Solution

The fourth proportional to 418,701,759.13, 628,146,305.17 and 127,591,665.35 is: 191,416,041.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,701,759.13 : 628,146,305.17 = 127,591,665.35 : x
  2. Step 2: Convert to fraction form
    418,701,759.13/628,146,305.17 = 127,591,665.35/x
  3. Step 3: Cross multiply
    418,701,759.13x = 628,146,305.17 × 127,591,665.35
  4. Step 4: Simplify right side
    418,701,759.13x = 80,146,233,159,451,648
  5. Step 5: Solve for x
    x = 80,146,233,159,451,648/418,701,759.13
  6. Step 6: Final answer
    x = 191,416,041.16

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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.