Home / 199,223,155.39-298,221,819.90-129,986,876.11

Finding the Fourth Proportional to 199,223,155.39, 298,221,819.90 and 129,986,876.11

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Solution

The fourth proportional to 199,223,155.39, 298,221,819.90 and 129,986,876.11 is: 194,580,407.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,223,155.39 : 298,221,819.90 = 129,986,876.11 : x
  2. Step 2: Convert to fraction form
    199,223,155.39/298,221,819.90 = 129,986,876.11/x
  3. Step 3: Cross multiply
    199,223,155.39x = 298,221,819.90 × 129,986,876.11
  4. Step 4: Simplify right side
    199,223,155.39x = 38,764,922,756,640,032
  5. Step 5: Solve for x
    x = 38,764,922,756,640,032/199,223,155.39
  6. Step 6: Final answer
    x = 194,580,407.49

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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.