Home / 20,417,909.70-30,618,007.20-6,765,780.90

Finding the Fourth Proportional to 20,417,909.70, 30,618,007.20 and 6,765,780.90

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Solution

The fourth proportional to 20,417,909.70, 30,618,007.20 and 6,765,780.90 is: 10,145,736.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,417,909.70 : 30,618,007.20 = 6,765,780.90 : x
  2. Step 2: Convert to fraction form
    20,417,909.70/30,618,007.20 = 6,765,780.90/x
  3. Step 3: Cross multiply
    20,417,909.70x = 30,618,007.20 × 6,765,780.90
  4. Step 4: Simplify right side
    20,417,909.70x = 207,154,728,309,822.50
  5. Step 5: Solve for x
    x = 207,154,728,309,822.50/20,417,909.70
  6. Step 6: Final answer
    x = 10,145,736.33

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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.