Home / 20,220,324.60-30,330,486.90-13,417,879.80

Finding the Fourth Proportional to 20,220,324.60, 30,330,486.90 and 13,417,879.80

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Solution

The fourth proportional to 20,220,324.60, 30,330,486.90 and 13,417,879.80 is: 20,126,819.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,220,324.60 : 30,330,486.90 = 13,417,879.80 : x
  2. Step 2: Convert to fraction form
    20,220,324.60/30,330,486.90 = 13,417,879.80/x
  3. Step 3: Cross multiply
    20,220,324.60x = 30,330,486.90 × 13,417,879.80
  4. Step 4: Simplify right side
    20,220,324.60x = 406,970,827,499,674.62
  5. Step 5: Solve for x
    x = 406,970,827,499,674.62/20,220,324.60
  6. Step 6: Final answer
    x = 20,126,819.70

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Double scale
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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.