Home / 219,793,513.80-329,690,270.70-138,004,743.90

Finding the Fourth Proportional to 219,793,513.80, 329,690,270.70 and 138,004,743.90

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Solution

The fourth proportional to 219,793,513.80, 329,690,270.70 and 138,004,743.90 is: 207,007,115.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,793,513.80 : 329,690,270.70 = 138,004,743.90 : x
  2. Step 2: Convert to fraction form
    219,793,513.80/329,690,270.70 = 138,004,743.90/x
  3. Step 3: Cross multiply
    219,793,513.80x = 329,690,270.70 × 138,004,743.90
  4. Step 4: Simplify right side
    219,793,513.80x = 45,498,821,374,275,176
  5. Step 5: Solve for x
    x = 45,498,821,374,275,176/219,793,513.80
  6. Step 6: Final answer
    x = 207,007,115.85

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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.