Home / 21,404,342.16-29,525,639.13-13,660,656.30

Finding the Fourth Proportional to 21,404,342.16, 29,525,639.13 and 13,660,656.30

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Solution

The fourth proportional to 21,404,342.16, 29,525,639.13 and 13,660,656.30 is: 18,843,821.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,404,342.16 : 29,525,639.13 = 13,660,656.30 : x
  2. Step 2: Convert to fraction form
    21,404,342.16/29,525,639.13 = 13,660,656.30/x
  3. Step 3: Cross multiply
    21,404,342.16x = 29,525,639.13 × 13,660,656.30
  4. Step 4: Simplify right side
    21,404,342.16x = 403,339,608,192,761
  5. Step 5: Solve for x
    x = 403,339,608,192,761/21,404,342.16
  6. Step 6: Final answer
    x = 18,843,821.74

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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.