Home / 12,931,107.91-19,374,712.22-7,802,761.73

Finding the Fourth Proportional to 12,931,107.91, 19,374,712.22 and 7,802,761.73

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Solution

The fourth proportional to 12,931,107.91, 19,374,712.22 and 7,802,761.73 is: 11,690,897.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,931,107.91 : 19,374,712.22 = 7,802,761.73 : x
  2. Step 2: Convert to fraction form
    12,931,107.91/19,374,712.22 = 7,802,761.73/x
  3. Step 3: Cross multiply
    12,931,107.91x = 19,374,712.22 × 7,802,761.73
  4. Step 4: Simplify right side
    12,931,107.91x = 151,176,262,962,612.69
  5. Step 5: Solve for x
    x = 151,176,262,962,612.69/12,931,107.91
  6. Step 6: Final answer
    x = 11,690,897.95

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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.