Home / 90,545,999.80-135,836,714.40-38,730,502.30

Finding the Fourth Proportional to 90,545,999.80, 135,836,714.40 and 38,730,502.30

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Solution

The fourth proportional to 90,545,999.80, 135,836,714.40 and 38,730,502.30 is: 58,103,330.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,545,999.80 : 135,836,714.40 = 38,730,502.30 : x
  2. Step 2: Convert to fraction form
    90,545,999.80/135,836,714.40 = 38,730,502.30/x
  3. Step 3: Cross multiply
    90,545,999.80x = 135,836,714.40 × 38,730,502.30
  4. Step 4: Simplify right side
    90,545,999.80x = 5,261,024,179,493,643
  5. Step 5: Solve for x
    x = 5,261,024,179,493,643/90,545,999.80
  6. Step 6: Final answer
    x = 58,103,330.81

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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.