Home / 12,219,445.24-18,329,167.90-3,121,562.86

Finding the Fourth Proportional to 12,219,445.24, 18,329,167.90 and 3,121,562.86

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Solution

The fourth proportional to 12,219,445.24, 18,329,167.90 and 3,121,562.86 is: 4,682,344.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,219,445.24 : 18,329,167.90 = 3,121,562.86 : x
  2. Step 2: Convert to fraction form
    12,219,445.24/18,329,167.90 = 3,121,562.86/x
  3. Step 3: Cross multiply
    12,219,445.24x = 18,329,167.90 × 3,121,562.86
  4. Step 4: Simplify right side
    12,219,445.24x = 57,215,649,771,344.19
  5. Step 5: Solve for x
    x = 57,215,649,771,344.19/12,219,445.24
  6. Step 6: Final answer
    x = 4,682,344.30

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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.