Home / 81,862,891.40-122,794,337.10-38,816,170.40

Finding the Fourth Proportional to 81,862,891.40, 122,794,337.10 and 38,816,170.40

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Solution

The fourth proportional to 81,862,891.40, 122,794,337.10 and 38,816,170.40 is: 58,224,255.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,862,891.40 : 122,794,337.10 = 38,816,170.40 : x
  2. Step 2: Convert to fraction form
    81,862,891.40/122,794,337.10 = 38,816,170.40/x
  3. Step 3: Cross multiply
    81,862,891.40x = 122,794,337.10 × 38,816,170.40
  4. Step 4: Simplify right side
    81,862,891.40x = 4,766,405,913,028,641
  5. Step 5: Solve for x
    x = 4,766,405,913,028,641/81,862,891.40
  6. Step 6: Final answer
    x = 58,224,255.60

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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.