Home / 91,781,711.40-137,678,787.90-31,202,005.80

Finding the Fourth Proportional to 91,781,711.40, 137,678,787.90 and 31,202,005.80

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Solution

The fourth proportional to 91,781,711.40, 137,678,787.90 and 31,202,005.80 is: 46,805,123.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,781,711.40 : 137,678,787.90 = 31,202,005.80 : x
  2. Step 2: Convert to fraction form
    91,781,711.40/137,678,787.90 = 31,202,005.80/x
  3. Step 3: Cross multiply
    91,781,711.40x = 137,678,787.90 × 31,202,005.80
  4. Step 4: Simplify right side
    91,781,711.40x = 4,295,854,338,592,770
  5. Step 5: Solve for x
    x = 4,295,854,338,592,770/91,781,711.40
  6. Step 6: Final answer
    x = 46,805,123.52

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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.