Home / 121,684,891.56-182,404,515.40-76,278,572.52

Finding the Fourth Proportional to 121,684,891.56, 182,404,515.40 and 76,278,572.52

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Solution

The fourth proportional to 121,684,891.56, 182,404,515.40 and 76,278,572.52 is: 114,340,867.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,684,891.56 : 182,404,515.40 = 76,278,572.52 : x
  2. Step 2: Convert to fraction form
    121,684,891.56/182,404,515.40 = 76,278,572.52/x
  3. Step 3: Cross multiply
    121,684,891.56x = 182,404,515.40 × 76,278,572.52
  4. Step 4: Simplify right side
    121,684,891.56x = 13,913,556,055,914,356
  5. Step 5: Solve for x
    x = 13,913,556,055,914,356/121,684,891.56
  6. Step 6: Final answer
    x = 114,340,867.44

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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.