Home / 14,969,405.90-20,656,931.92-8,442,645.21

Finding the Fourth Proportional to 14,969,405.90, 20,656,931.92 and 8,442,645.21

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Solution

The fourth proportional to 14,969,405.90, 20,656,931.92 and 8,442,645.21 is: 11,650,371.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,969,405.90 : 20,656,931.92 = 8,442,645.21 : x
  2. Step 2: Convert to fraction form
    14,969,405.90/20,656,931.92 = 8,442,645.21/x
  3. Step 3: Cross multiply
    14,969,405.90x = 20,656,931.92 × 8,442,645.21
  4. Step 4: Simplify right side
    14,969,405.90x = 174,399,147,306,577.50
  5. Step 5: Solve for x
    x = 174,399,147,306,577.50/14,969,405.90
  6. Step 6: Final answer
    x = 11,650,371.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.