Home / 72,612,111.70-108,918,167.55-27,168,001.30

Finding the Fourth Proportional to 72,612,111.70, 108,918,167.55 and 27,168,001.30

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Solution

The fourth proportional to 72,612,111.70, 108,918,167.55 and 27,168,001.30 is: 40,752,001.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,612,111.70 : 108,918,167.55 = 27,168,001.30 : x
  2. Step 2: Convert to fraction form
    72,612,111.70/108,918,167.55 = 27,168,001.30/x
  3. Step 3: Cross multiply
    72,612,111.70x = 108,918,167.55 × 27,168,001.30
  4. Step 4: Simplify right side
    72,612,111.70x = 2,959,088,917,592,018
  5. Step 5: Solve for x
    x = 2,959,088,917,592,018/72,612,111.70
  6. Step 6: Final answer
    x = 40,752,001.95

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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.