Home / 12,909,302.20-19,367,489.56-3,811,396.78

Finding the Fourth Proportional to 12,909,302.20, 19,367,489.56 and 3,811,396.78

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Solution

The fourth proportional to 12,909,302.20, 19,367,489.56 and 3,811,396.78 is: 5,718,139.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,909,302.20 : 19,367,489.56 = 3,811,396.78 : x
  2. Step 2: Convert to fraction form
    12,909,302.20/19,367,489.56 = 3,811,396.78/x
  3. Step 3: Cross multiply
    12,909,302.20x = 19,367,489.56 × 3,811,396.78
  4. Step 4: Simplify right side
    12,909,302.20x = 73,817,187,367,494.86
  5. Step 5: Solve for x
    x = 73,817,187,367,494.86/12,909,302.20
  6. Step 6: Final answer
    x = 5,718,139.23

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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.