Home / 18,172,862.30-27,232,721.40-15,462,513.20

Finding the Fourth Proportional to 18,172,862.30, 27,232,721.40 and 15,462,513.20

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Solution

The fourth proportional to 18,172,862.30, 27,232,721.40 and 15,462,513.20 is: 23,171,160.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,172,862.30 : 27,232,721.40 = 15,462,513.20 : x
  2. Step 2: Convert to fraction form
    18,172,862.30/27,232,721.40 = 15,462,513.20/x
  3. Step 3: Cross multiply
    18,172,862.30x = 27,232,721.40 × 15,462,513.20
  4. Step 4: Simplify right side
    18,172,862.30x = 421,086,314,119,422.44
  5. Step 5: Solve for x
    x = 421,086,314,119,422.44/18,172,862.30
  6. Step 6: Final answer
    x = 23,171,160.78

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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.