Home / 20,137,608.60-30,206,412.90-12,484,858.20

Finding the Fourth Proportional to 20,137,608.60, 30,206,412.90 and 12,484,858.20

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Solution

The fourth proportional to 20,137,608.60, 30,206,412.90 and 12,484,858.20 is: 18,727,287.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,137,608.60 : 30,206,412.90 = 12,484,858.20 : x
  2. Step 2: Convert to fraction form
    20,137,608.60/30,206,412.90 = 12,484,858.20/x
  3. Step 3: Cross multiply
    20,137,608.60x = 30,206,412.90 × 12,484,858.20
  4. Step 4: Simplify right side
    20,137,608.60x = 377,122,781,787,150.75
  5. Step 5: Solve for x
    x = 377,122,781,787,150.75/20,137,608.60
  6. Step 6: Final answer
    x = 18,727,287.30

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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.