Home / 142,168,236.47-213,260,621.57-39,940,245.71

Finding the Fourth Proportional to 142,168,236.47, 213,260,621.57 and 39,940,245.71

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Solution

The fourth proportional to 142,168,236.47, 213,260,621.57 and 39,940,245.71 is: 59,912,691.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,168,236.47 : 213,260,621.57 = 39,940,245.71 : x
  2. Step 2: Convert to fraction form
    142,168,236.47/213,260,621.57 = 39,940,245.71/x
  3. Step 3: Cross multiply
    142,168,236.47x = 213,260,621.57 × 39,940,245.71
  4. Step 4: Simplify right side
    142,168,236.47x = 8,517,681,625,573,425
  5. Step 5: Solve for x
    x = 8,517,681,625,573,425/142,168,236.47
  6. Step 6: Final answer
    x = 59,912,691.03

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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.