Home / 87,840,277.29-130,975,101.45-85,426,939.17

Finding the Fourth Proportional to 87,840,277.29, 130,975,101.45 and 85,426,939.17

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Solution

The fourth proportional to 87,840,277.29, 130,975,101.45 and 85,426,939.17 is: 127,376,670.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,840,277.29 : 130,975,101.45 = 85,426,939.17 : x
  2. Step 2: Convert to fraction form
    87,840,277.29/130,975,101.45 = 85,426,939.17/x
  3. Step 3: Cross multiply
    87,840,277.29x = 130,975,101.45 × 85,426,939.17
  4. Step 4: Simplify right side
    87,840,277.29x = 11,188,802,024,353,730
  5. Step 5: Solve for x
    x = 11,188,802,024,353,730/87,840,277.29
  6. Step 6: Final answer
    x = 127,376,670.13

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.