Home / 391,143,968.20-539,747,080.50-226,142,173

Finding the Fourth Proportional to 391,143,968.20, 539,747,080.50 and 226,142,173

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Solution

The fourth proportional to 391,143,968.20, 539,747,080.50 and 226,142,173 is: 312,057,931.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,143,968.20 : 539,747,080.50 = 226,142,173 : x
  2. Step 2: Convert to fraction form
    391,143,968.20/539,747,080.50 = 226,142,173/x
  3. Step 3: Cross multiply
    391,143,968.20x = 539,747,080.50 × 226,142,173
  4. Step 4: Simplify right side
    391,143,968.20x = 122,059,577,654,675,920
  5. Step 5: Solve for x
    x = 122,059,577,654,675,920/391,143,968.20
  6. Step 6: Final answer
    x = 312,057,931.55

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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.