Home / 77,669,139.60-107,223,711.30-56,737,671.66

Finding the Fourth Proportional to 77,669,139.60, 107,223,711.30 and 56,737,671.66

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Solution

The fourth proportional to 77,669,139.60, 107,223,711.30 and 56,737,671.66 is: 78,327,425.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,669,139.60 : 107,223,711.30 = 56,737,671.66 : x
  2. Step 2: Convert to fraction form
    77,669,139.60/107,223,711.30 = 56,737,671.66/x
  3. Step 3: Cross multiply
    77,669,139.60x = 107,223,711.30 × 56,737,671.66
  4. Step 4: Simplify right side
    77,669,139.60x = 6,083,623,725,906,031
  5. Step 5: Solve for x
    x = 6,083,623,725,906,031/77,669,139.60
  6. Step 6: Final answer
    x = 78,327,425.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.