Home / 90,545,991.30-135,836,701.65-38,730,493.80

Finding the Fourth Proportional to 90,545,991.30, 135,836,701.65 and 38,730,493.80

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Solution

The fourth proportional to 90,545,991.30, 135,836,701.65 and 38,730,493.80 is: 58,103,318.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,545,991.30 : 135,836,701.65 = 38,730,493.80 : x
  2. Step 2: Convert to fraction form
    90,545,991.30/135,836,701.65 = 38,730,493.80/x
  3. Step 3: Cross multiply
    90,545,991.30x = 135,836,701.65 × 38,730,493.80
  4. Step 4: Simplify right side
    90,545,991.30x = 5,261,022,531,067,775
  5. Step 5: Solve for x
    x = 5,261,022,531,067,775/90,545,991.30
  6. Step 6: Final answer
    x = 58,103,318.05

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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.