Home / 21,672,078.53-32,503,143.17-12,920,833.26

Finding the Fourth Proportional to 21,672,078.53, 32,503,143.17 and 12,920,833.26

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Solution

The fourth proportional to 21,672,078.53, 32,503,143.17 and 12,920,833.26 is: 19,378,284.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,672,078.53 : 32,503,143.17 = 12,920,833.26 : x
  2. Step 2: Convert to fraction form
    21,672,078.53/32,503,143.17 = 12,920,833.26/x
  3. Step 3: Cross multiply
    21,672,078.53x = 32,503,143.17 × 12,920,833.26
  4. Step 4: Simplify right side
    21,672,078.53x = 419,967,693,357,779.88
  5. Step 5: Solve for x
    x = 419,967,693,357,779.88/21,672,078.53
  6. Step 6: Final answer
    x = 19,378,284.04

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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.