Home / 138,349,838.70-207,747,073.89-91,735,321.23

Finding the Fourth Proportional to 138,349,838.70, 207,747,073.89 and 91,735,321.23

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Solution

The fourth proportional to 138,349,838.70, 207,747,073.89 and 91,735,321.23 is: 137,750,392.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,349,838.70 : 207,747,073.89 = 91,735,321.23 : x
  2. Step 2: Convert to fraction form
    138,349,838.70/207,747,073.89 = 91,735,321.23/x
  3. Step 3: Cross multiply
    138,349,838.70x = 207,747,073.89 × 91,735,321.23
  4. Step 4: Simplify right side
    138,349,838.70x = 19,057,744,557,891,696
  5. Step 5: Solve for x
    x = 19,057,744,557,891,696/138,349,838.70
  6. Step 6: Final answer
    x = 137,750,392.32

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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.