Home / 21,425,920.97-29,569,594.48-12,135,143.79

Finding the Fourth Proportional to 21,425,920.97, 29,569,594.48 and 12,135,143.79

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Solution

The fourth proportional to 21,425,920.97, 29,569,594.48 and 12,135,143.79 is: 16,747,531.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,425,920.97 : 29,569,594.48 = 12,135,143.79 : x
  2. Step 2: Convert to fraction form
    21,425,920.97/29,569,594.48 = 12,135,143.79/x
  3. Step 3: Cross multiply
    21,425,920.97x = 29,569,594.48 × 12,135,143.79
  4. Step 4: Simplify right side
    21,425,920.97x = 358,831,280,766,114.56
  5. Step 5: Solve for x
    x = 358,831,280,766,114.56/21,425,920.97
  6. Step 6: Final answer
    x = 16,747,531.24

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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.