Home / 91,016,039.28-136,621,213.42-39,226,200.68

Finding the Fourth Proportional to 91,016,039.28, 136,621,213.42 and 39,226,200.68

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Solution

The fourth proportional to 91,016,039.28, 136,621,213.42 and 39,226,200.68 is: 58,881,172.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,016,039.28 : 136,621,213.42 = 39,226,200.68 : x
  2. Step 2: Convert to fraction form
    91,016,039.28/136,621,213.42 = 39,226,200.68/x
  3. Step 3: Cross multiply
    91,016,039.28x = 136,621,213.42 × 39,226,200.68
  4. Step 4: Simplify right side
    91,016,039.28x = 5,359,131,134,758,029
  5. Step 5: Solve for x
    x = 5,359,131,134,758,029/91,016,039.28
  6. Step 6: Final answer
    x = 58,881,172.78

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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.