Home / 99,648,119.20-149,472,178.80-86,016,657.55

Finding the Fourth Proportional to 99,648,119.20, 149,472,178.80 and 86,016,657.55

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Solution

The fourth proportional to 99,648,119.20, 149,472,178.80 and 86,016,657.55 is: 129,024,986.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,648,119.20 : 149,472,178.80 = 86,016,657.55 : x
  2. Step 2: Convert to fraction form
    99,648,119.20/149,472,178.80 = 86,016,657.55/x
  3. Step 3: Cross multiply
    99,648,119.20x = 149,472,178.80 × 86,016,657.55
  4. Step 4: Simplify right side
    99,648,119.20x = 12,857,097,217,091,970
  5. Step 5: Solve for x
    x = 12,857,097,217,091,970/99,648,119.20
  6. Step 6: Final answer
    x = 129,024,986.33

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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.