Home / 121,817,248.46-167,921,828.23-74,687,067.80

Finding the Fourth Proportional to 121,817,248.46, 167,921,828.23 and 74,687,067.80

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Solution

The fourth proportional to 121,817,248.46, 167,921,828.23 and 74,687,067.80 is: 102,954,131.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,817,248.46 : 167,921,828.23 = 74,687,067.80 : x
  2. Step 2: Convert to fraction form
    121,817,248.46/167,921,828.23 = 74,687,067.80/x
  3. Step 3: Cross multiply
    121,817,248.46x = 167,921,828.23 × 74,687,067.80
  4. Step 4: Simplify right side
    121,817,248.46x = 12,541,588,969,087,636
  5. Step 5: Solve for x
    x = 12,541,588,969,087,636/121,817,248.46
  6. Step 6: Final answer
    x = 102,954,131.11

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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.