Home / 144,512,698.11-199,427,719.35-78,433,198.44

Finding the Fourth Proportional to 144,512,698.11, 199,427,719.35 and 78,433,198.44

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Solution

The fourth proportional to 144,512,698.11, 199,427,719.35 and 78,433,198.44 is: 108,237,920.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,512,698.11 : 199,427,719.35 = 78,433,198.44 : x
  2. Step 2: Convert to fraction form
    144,512,698.11/199,427,719.35 = 78,433,198.44/x
  3. Step 3: Cross multiply
    144,512,698.11x = 199,427,719.35 × 78,433,198.44
  4. Step 4: Simplify right side
    144,512,698.11x = 15,641,753,886,215,176
  5. Step 5: Solve for x
    x = 15,641,753,886,215,176/144,512,698.11
  6. Step 6: Final answer
    x = 108,237,920.20

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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.