Home / 99,647,534.45-149,471,301.68-86,016,072.80

Finding the Fourth Proportional to 99,647,534.45, 149,471,301.68 and 86,016,072.80

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Solution

The fourth proportional to 99,647,534.45, 149,471,301.68 and 86,016,072.80 is: 129,024,109.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,647,534.45 : 149,471,301.68 = 86,016,072.80 : x
  2. Step 2: Convert to fraction form
    99,647,534.45/149,471,301.68 = 86,016,072.80/x
  3. Step 3: Cross multiply
    99,647,534.45x = 149,471,301.68 × 86,016,072.80
  4. Step 4: Simplify right side
    99,647,534.45x = 12,856,934,366,817,642
  5. Step 5: Solve for x
    x = 12,856,934,366,817,642/99,647,534.45
  6. Step 6: Final answer
    x = 129,024,109.20

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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.