Home / 91,948,485.76-137,936,900.40-31,350,040

Finding the Fourth Proportional to 91,948,485.76, 137,936,900.40 and 31,350,040

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Solution

The fourth proportional to 91,948,485.76, 137,936,900.40 and 31,350,040 is: 47,029,891.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,948,485.76 : 137,936,900.40 = 31,350,040 : x
  2. Step 2: Convert to fraction form
    91,948,485.76/137,936,900.40 = 31,350,040/x
  3. Step 3: Cross multiply
    91,948,485.76x = 137,936,900.40 × 31,350,040
  4. Step 4: Simplify right side
    91,948,485.76x = 4,324,327,345,016,016
  5. Step 5: Solve for x
    x = 4,324,327,345,016,016/91,948,485.76
  6. Step 6: Final answer
    x = 47,029,891.89

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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.