Home / 12,979,968.59-17,917,872-8,087,607.89

Finding the Fourth Proportional to 12,979,968.59, 17,917,872 and 8,087,607.89

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Solution

The fourth proportional to 12,979,968.59, 17,917,872 and 8,087,607.89 is: 11,164,335.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,979,968.59 : 17,917,872 = 8,087,607.89 : x
  2. Step 2: Convert to fraction form
    12,979,968.59/17,917,872 = 8,087,607.89/x
  3. Step 3: Cross multiply
    12,979,968.59x = 17,917,872 × 8,087,607.89
  4. Step 4: Simplify right side
    12,979,968.59x = 144,912,722,959,210.06
  5. Step 5: Solve for x
    x = 144,912,722,959,210.06/12,979,968.59
  6. Step 6: Final answer
    x = 11,164,335.42

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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.