Home / 865,754,447.28-1,194,709,128.96-469,268,923.92

Finding the Fourth Proportional to 865,754,447.28, 1,194,709,128.96 and 469,268,923.92

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Solution

The fourth proportional to 865,754,447.28, 1,194,709,128.96 and 469,268,923.92 is: 647,573,765.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,754,447.28 : 1,194,709,128.96 = 469,268,923.92 : x
  2. Step 2: Convert to fraction form
    865,754,447.28/1,194,709,128.96 = 469,268,923.92/x
  3. Step 3: Cross multiply
    865,754,447.28x = 1,194,709,128.96 × 469,268,923.92
  4. Step 4: Simplify right side
    865,754,447.28x = 560,639,867,344,459,776
  5. Step 5: Solve for x
    x = 560,639,867,344,459,776/865,754,447.28
  6. Step 6: Final answer
    x = 647,573,765.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.