Home / 115,857,049.28-159,864,972.32-66,955,040.96

Finding the Fourth Proportional to 115,857,049.28, 159,864,972.32 and 66,955,040.96

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Solution

The fourth proportional to 115,857,049.28, 159,864,972.32 and 66,955,040.96 is: 92,387,695.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,857,049.28 : 159,864,972.32 = 66,955,040.96 : x
  2. Step 2: Convert to fraction form
    115,857,049.28/159,864,972.32 = 66,955,040.96/x
  3. Step 3: Cross multiply
    115,857,049.28x = 159,864,972.32 × 66,955,040.96
  4. Step 4: Simplify right side
    115,857,049.28x = 10,703,765,769,754,866
  5. Step 5: Solve for x
    x = 10,703,765,769,754,866/115,857,049.28
  6. Step 6: Final answer
    x = 92,387,695.32

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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.