Home / 138,440,450.30-207,660,675.45-57,650,920.70

Finding the Fourth Proportional to 138,440,450.30, 207,660,675.45 and 57,650,920.70

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Solution

The fourth proportional to 138,440,450.30, 207,660,675.45 and 57,650,920.70 is: 86,476,381.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,440,450.30 : 207,660,675.45 = 57,650,920.70 : x
  2. Step 2: Convert to fraction form
    138,440,450.30/207,660,675.45 = 57,650,920.70/x
  3. Step 3: Cross multiply
    138,440,450.30x = 207,660,675.45 × 57,650,920.70
  4. Step 4: Simplify right side
    138,440,450.30x = 11,971,829,132,876,386
  5. Step 5: Solve for x
    x = 11,971,829,132,876,386/138,440,450.30
  6. Step 6: Final answer
    x = 86,476,381.05

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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.