Home / 29,120,115.20-43,680,172.80-9,947,998.40

Finding the Fourth Proportional to 29,120,115.20, 43,680,172.80 and 9,947,998.40

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Solution

The fourth proportional to 29,120,115.20, 43,680,172.80 and 9,947,998.40 is: 14,921,997.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,120,115.20 : 43,680,172.80 = 9,947,998.40 : x
  2. Step 2: Convert to fraction form
    29,120,115.20/43,680,172.80 = 9,947,998.40/x
  3. Step 3: Cross multiply
    29,120,115.20x = 43,680,172.80 × 9,947,998.40
  4. Step 4: Simplify right side
    29,120,115.20x = 434,530,289,126,123.50
  5. Step 5: Solve for x
    x = 434,530,289,126,123.50/29,120,115.20
  6. Step 6: Final answer
    x = 14,921,997.60

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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.