Home / 21,056,013.54-29,057,499-12,354,334.20

Finding the Fourth Proportional to 21,056,013.54, 29,057,499 and 12,354,334.20

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Solution

The fourth proportional to 21,056,013.54, 29,057,499 and 12,354,334.20 is: 17,049,098.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,056,013.54 : 29,057,499 = 12,354,334.20 : x
  2. Step 2: Convert to fraction form
    21,056,013.54/29,057,499 = 12,354,334.20/x
  3. Step 3: Cross multiply
    21,056,013.54x = 29,057,499 × 12,354,334.20
  4. Step 4: Simplify right side
    21,056,013.54x = 358,986,053,662,165.75
  5. Step 5: Solve for x
    x = 358,986,053,662,165.75/21,056,013.54
  6. Step 6: Final answer
    x = 17,049,098.73

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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.