Home / 138,440,405.80-207,660,608.70-57,650,876.20

Finding the Fourth Proportional to 138,440,405.80, 207,660,608.70 and 57,650,876.20

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Solution

The fourth proportional to 138,440,405.80, 207,660,608.70 and 57,650,876.20 is: 86,476,314.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,440,405.80 : 207,660,608.70 = 57,650,876.20 : x
  2. Step 2: Convert to fraction form
    138,440,405.80/207,660,608.70 = 57,650,876.20/x
  3. Step 3: Cross multiply
    138,440,405.80x = 207,660,608.70 × 57,650,876.20
  4. Step 4: Simplify right side
    138,440,405.80x = 11,971,816,043,780,342
  5. Step 5: Solve for x
    x = 11,971,816,043,780,342/138,440,405.80
  6. Step 6: Final answer
    x = 86,476,314.30

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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.