Home / 199,223,143.11-298,221,801.51-129,986,863.83

Finding the Fourth Proportional to 199,223,143.11, 298,221,801.51 and 129,986,863.83

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Solution

The fourth proportional to 199,223,143.11, 298,221,801.51 and 129,986,863.83 is: 194,580,389.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,223,143.11 : 298,221,801.51 = 129,986,863.83 : x
  2. Step 2: Convert to fraction form
    199,223,143.11/298,221,801.51 = 129,986,863.83/x
  3. Step 3: Cross multiply
    199,223,143.11x = 298,221,801.51 × 129,986,863.83
  4. Step 4: Simplify right side
    199,223,143.11x = 38,764,916,704,017,656
  5. Step 5: Solve for x
    x = 38,764,916,704,017,656/199,223,143.11
  6. Step 6: Final answer
    x = 194,580,389.10

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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.