Home / 20,156,597.60-30,234,896.40-11,972,406.20

Finding the Fourth Proportional to 20,156,597.60, 30,234,896.40 and 11,972,406.20

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Solution

The fourth proportional to 20,156,597.60, 30,234,896.40 and 11,972,406.20 is: 17,958,609.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,156,597.60 : 30,234,896.40 = 11,972,406.20 : x
  2. Step 2: Convert to fraction form
    20,156,597.60/30,234,896.40 = 11,972,406.20/x
  3. Step 3: Cross multiply
    20,156,597.60x = 30,234,896.40 × 11,972,406.20
  4. Step 4: Simplify right side
    20,156,597.60x = 361,984,461,115,717.62
  5. Step 5: Solve for x
    x = 361,984,461,115,717.62/20,156,597.60
  6. Step 6: Final answer
    x = 17,958,609.30

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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.