Home / 91,808,608.20-137,712,912.30-71,002,693.05

Finding the Fourth Proportional to 91,808,608.20, 137,712,912.30 and 71,002,693.05

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Solution

The fourth proportional to 91,808,608.20, 137,712,912.30 and 71,002,693.05 is: 106,504,039.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,808,608.20 : 137,712,912.30 = 71,002,693.05 : x
  2. Step 2: Convert to fraction form
    91,808,608.20/137,712,912.30 = 71,002,693.05/x
  3. Step 3: Cross multiply
    91,808,608.20x = 137,712,912.30 × 71,002,693.05
  4. Step 4: Simplify right side
    91,808,608.20x = 9,777,987,641,058,470
  5. Step 5: Solve for x
    x = 9,777,987,641,058,470/91,808,608.20
  6. Step 6: Final answer
    x = 106,504,039.58

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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.