Home / 20,156,594.60-30,234,891.90-11,972,403.20

Finding the Fourth Proportional to 20,156,594.60, 30,234,891.90 and 11,972,403.20

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Solution

The fourth proportional to 20,156,594.60, 30,234,891.90 and 11,972,403.20 is: 17,958,604.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,156,594.60 : 30,234,891.90 = 11,972,403.20 : x
  2. Step 2: Convert to fraction form
    20,156,594.60/30,234,891.90 = 11,972,403.20/x
  3. Step 3: Cross multiply
    20,156,594.60x = 30,234,891.90 × 11,972,403.20
  4. Step 4: Simplify right side
    20,156,594.60x = 361,984,316,535,214.06
  5. Step 5: Solve for x
    x = 361,984,316,535,214.06/20,156,594.60
  6. Step 6: Final answer
    x = 17,958,604.80

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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.