Home / 21,056,957.39-29,053,619.18-12,231,165.29

Finding the Fourth Proportional to 21,056,957.39, 29,053,619.18 and 12,231,165.29

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Solution

The fourth proportional to 21,056,957.39, 29,053,619.18 and 12,231,165.29 is: 16,876,114.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,056,957.39 : 29,053,619.18 = 12,231,165.29 : x
  2. Step 2: Convert to fraction form
    21,056,957.39/29,053,619.18 = 12,231,165.29/x
  3. Step 3: Cross multiply
    21,056,957.39x = 29,053,619.18 × 12,231,165.29
  4. Step 4: Simplify right side
    21,056,957.39x = 355,359,618,474,772.50
  5. Step 5: Solve for x
    x = 355,359,618,474,772.50/21,056,957.39
  6. Step 6: Final answer
    x = 16,876,114.24

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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.