Home / 137,906,458.40-206,859,687.60-61,148,007.20

Finding the Fourth Proportional to 137,906,458.40, 206,859,687.60 and 61,148,007.20

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Solution

The fourth proportional to 137,906,458.40, 206,859,687.60 and 61,148,007.20 is: 91,722,010.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,906,458.40 : 206,859,687.60 = 61,148,007.20 : x
  2. Step 2: Convert to fraction form
    137,906,458.40/206,859,687.60 = 61,148,007.20/x
  3. Step 3: Cross multiply
    137,906,458.40x = 206,859,687.60 × 61,148,007.20
  4. Step 4: Simplify right side
    137,906,458.40x = 12,649,057,666,754,550
  5. Step 5: Solve for x
    x = 12,649,057,666,754,550/137,906,458.40
  6. Step 6: Final answer
    x = 91,722,010.80

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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.