Home / 100,540,172.94-138,744,488.76-55,884,974.18

Finding the Fourth Proportional to 100,540,172.94, 138,744,488.76 and 55,884,974.18

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Solution

The fourth proportional to 100,540,172.94, 138,744,488.76 and 55,884,974.18 is: 77,120,736.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,540,172.94 : 138,744,488.76 = 55,884,974.18 : x
  2. Step 2: Convert to fraction form
    100,540,172.94/138,744,488.76 = 55,884,974.18/x
  3. Step 3: Cross multiply
    100,540,172.94x = 138,744,488.76 × 55,884,974.18
  4. Step 4: Simplify right side
    100,540,172.94x = 7,753,732,171,969,900
  5. Step 5: Solve for x
    x = 7,753,732,171,969,900/100,540,172.94
  6. Step 6: Final answer
    x = 77,120,736.37

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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.