Home / 99,647,532.45-149,471,298.68-86,016,070.80

Finding the Fourth Proportional to 99,647,532.45, 149,471,298.68 and 86,016,070.80

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Solution

The fourth proportional to 99,647,532.45, 149,471,298.68 and 86,016,070.80 is: 129,024,106.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,647,532.45 : 149,471,298.68 = 86,016,070.80 : x
  2. Step 2: Convert to fraction form
    99,647,532.45/149,471,298.68 = 86,016,070.80/x
  3. Step 3: Cross multiply
    99,647,532.45x = 149,471,298.68 × 86,016,070.80
  4. Step 4: Simplify right side
    99,647,532.45x = 12,856,933,809,396,746
  5. Step 5: Solve for x
    x = 12,856,933,809,396,746/99,647,532.45
  6. Step 6: Final answer
    x = 129,024,106.20

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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.