Home / 21,645,642.46-29,873,958.53-13,271,531.30

Finding the Fourth Proportional to 21,645,642.46, 29,873,958.53 and 13,271,531.30

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Solution

The fourth proportional to 21,645,642.46, 29,873,958.53 and 13,271,531.30 is: 18,316,535.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,645,642.46 : 29,873,958.53 = 13,271,531.30 : x
  2. Step 2: Convert to fraction form
    21,645,642.46/29,873,958.53 = 13,271,531.30/x
  3. Step 3: Cross multiply
    21,645,642.46x = 29,873,958.53 × 13,271,531.30
  4. Step 4: Simplify right side
    21,645,642.46x = 396,473,175,694,124.19
  5. Step 5: Solve for x
    x = 396,473,175,694,124.19/21,645,642.46
  6. Step 6: Final answer
    x = 18,316,535.37

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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.