Home / 129,024,016.80-193,536,025.20-74,604,458.40

Finding the Fourth Proportional to 129,024,016.80, 193,536,025.20 and 74,604,458.40

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Solution

The fourth proportional to 129,024,016.80, 193,536,025.20 and 74,604,458.40 is: 111,906,687.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,024,016.80 : 193,536,025.20 = 74,604,458.40 : x
  2. Step 2: Convert to fraction form
    129,024,016.80/193,536,025.20 = 74,604,458.40/x
  3. Step 3: Cross multiply
    129,024,016.80x = 193,536,025.20 × 74,604,458.40
  4. Step 4: Simplify right side
    129,024,016.80x = 14,438,650,340,934,752
  5. Step 5: Solve for x
    x = 14,438,650,340,934,752/129,024,016.80
  6. Step 6: Final answer
    x = 111,906,687.60

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1.5x scale

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.