Home / 144,520,555.26-199,435,863.78-78,439,635.39

Finding the Fourth Proportional to 144,520,555.26, 199,435,863.78 and 78,439,635.39

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Solution

The fourth proportional to 144,520,555.26, 199,435,863.78 and 78,439,635.39 is: 108,245,338.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,520,555.26 : 199,435,863.78 = 78,439,635.39 : x
  2. Step 2: Convert to fraction form
    144,520,555.26/199,435,863.78 = 78,439,635.39/x
  3. Step 3: Cross multiply
    144,520,555.26x = 199,435,863.78 × 78,439,635.39
  4. Step 4: Simplify right side
    144,520,555.26x = 15,643,676,438,592,908
  5. Step 5: Solve for x
    x = 15,643,676,438,592,908/144,520,555.26
  6. Step 6: Final answer
    x = 108,245,338.60

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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.