Home / 149,431,863.56-206,221,099.12-86,703,225.12

Finding the Fourth Proportional to 149,431,863.56, 206,221,099.12 and 86,703,225.12

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Solution

The fourth proportional to 149,431,863.56, 206,221,099.12 and 86,703,225.12 is: 119,653,425.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,431,863.56 : 206,221,099.12 = 86,703,225.12 : x
  2. Step 2: Convert to fraction form
    149,431,863.56/206,221,099.12 = 86,703,225.12/x
  3. Step 3: Cross multiply
    149,431,863.56x = 206,221,099.12 × 86,703,225.12
  4. Step 4: Simplify right side
    149,431,863.56x = 17,880,034,381,278,438
  5. Step 5: Solve for x
    x = 17,880,034,381,278,438/149,431,863.56
  6. Step 6: Final answer
    x = 119,653,425.69

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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.