Home / 765,412,747.92-1,147,186,376.28-396,744,449.76

Finding the Fourth Proportional to 765,412,747.92, 1,147,186,376.28 and 396,744,449.76

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Solution

The fourth proportional to 765,412,747.92, 1,147,186,376.28 and 396,744,449.76 is: 594,633,194.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,412,747.92 : 1,147,186,376.28 = 396,744,449.76 : x
  2. Step 2: Convert to fraction form
    765,412,747.92/1,147,186,376.28 = 396,744,449.76/x
  3. Step 3: Cross multiply
    765,412,747.92x = 1,147,186,376.28 × 396,744,449.76
  4. Step 4: Simplify right side
    765,412,747.92x = 455,139,827,629,376,896
  5. Step 5: Solve for x
    x = 455,139,827,629,376,896/765,412,747.92
  6. Step 6: Final answer
    x = 594,633,194.79

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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.