Home / 20,230,834.60-30,346,251.90-13,428,389.80

Finding the Fourth Proportional to 20,230,834.60, 30,346,251.90 and 13,428,389.80

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Solution

The fourth proportional to 20,230,834.60, 30,346,251.90 and 13,428,389.80 is: 20,142,584.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,230,834.60 : 30,346,251.90 = 13,428,389.80 : x
  2. Step 2: Convert to fraction form
    20,230,834.60/30,346,251.90 = 13,428,389.80/x
  3. Step 3: Cross multiply
    20,230,834.60x = 30,346,251.90 × 13,428,389.80
  4. Step 4: Simplify right side
    20,230,834.60x = 407,501,299,482,190.62
  5. Step 5: Solve for x
    x = 407,501,299,482,190.62/20,230,834.60
  6. Step 6: Final answer
    x = 20,142,584.70

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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.