Home / 144,517,342.42-199,428,597.96-78,436,421.79

Finding the Fourth Proportional to 144,517,342.42, 199,428,597.96 and 78,436,421.79

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Solution

The fourth proportional to 144,517,342.42, 199,428,597.96 and 78,436,421.79 is: 108,239,366.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,517,342.42 : 199,428,597.96 = 78,436,421.79 : x
  2. Step 2: Convert to fraction form
    144,517,342.42/199,428,597.96 = 78,436,421.79/x
  3. Step 3: Cross multiply
    144,517,342.42x = 199,428,597.96 × 78,436,421.79
  4. Step 4: Simplify right side
    144,517,342.42x = 15,642,465,625,536,900
  5. Step 5: Solve for x
    x = 15,642,465,625,536,900/144,517,342.42
  6. Step 6: Final answer
    x = 108,239,366.73

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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.