Home / 20,754,423.60-31,131,635.40-11,188,485.60

Finding the Fourth Proportional to 20,754,423.60, 31,131,635.40 and 11,188,485.60

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Solution

The fourth proportional to 20,754,423.60, 31,131,635.40 and 11,188,485.60 is: 16,782,728.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,754,423.60 : 31,131,635.40 = 11,188,485.60 : x
  2. Step 2: Convert to fraction form
    20,754,423.60/31,131,635.40 = 11,188,485.60/x
  3. Step 3: Cross multiply
    20,754,423.60x = 31,131,635.40 × 11,188,485.60
  4. Step 4: Simplify right side
    20,754,423.60x = 348,315,854,377,350.19
  5. Step 5: Solve for x
    x = 348,315,854,377,350.19/20,754,423.60
  6. Step 6: Final answer
    x = 16,782,728.40

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Similar ratio
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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.