Home / 99,654,017.20-149,481,025.80-90,088,079.20

Finding the Fourth Proportional to 99,654,017.20, 149,481,025.80 and 90,088,079.20

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Solution

The fourth proportional to 99,654,017.20, 149,481,025.80 and 90,088,079.20 is: 135,132,118.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,654,017.20 : 149,481,025.80 = 90,088,079.20 : x
  2. Step 2: Convert to fraction form
    99,654,017.20/149,481,025.80 = 90,088,079.20/x
  3. Step 3: Cross multiply
    99,654,017.20x = 149,481,025.80 × 90,088,079.20
  4. Step 4: Simplify right side
    99,654,017.20x = 13,466,458,491,167,644
  5. Step 5: Solve for x
    x = 13,466,458,491,167,644/99,654,017.20
  6. Step 6: Final answer
    x = 135,132,118.80

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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.