Home / 261,072,004.80-391,182,854.40-192,197,251.20

Finding the Fourth Proportional to 261,072,004.80, 391,182,854.40 and 192,197,251.20

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Solution

The fourth proportional to 261,072,004.80, 391,182,854.40 and 192,197,251.20 is: 287,982,885.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,072,004.80 : 391,182,854.40 = 192,197,251.20 : x
  2. Step 2: Convert to fraction form
    261,072,004.80/391,182,854.40 = 192,197,251.20/x
  3. Step 3: Cross multiply
    261,072,004.80x = 391,182,854.40 × 192,197,251.20
  4. Step 4: Simplify right side
    261,072,004.80x = 75,184,269,332,249,824
  5. Step 5: Solve for x
    x = 75,184,269,332,249,824/261,072,004.80
  6. Step 6: Final answer
    x = 287,982,885.76

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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.