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Finding the Fourth Proportional to 272,873,959.80, 409,310,939.70 and 100,315,067.10

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Solution

The fourth proportional to 272,873,959.80, 409,310,939.70 and 100,315,067.10 is: 150,472,600.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,873,959.80 : 409,310,939.70 = 100,315,067.10 : x
  2. Step 2: Convert to fraction form
    272,873,959.80/409,310,939.70 = 100,315,067.10/x
  3. Step 3: Cross multiply
    272,873,959.80x = 409,310,939.70 × 100,315,067.10
  4. Step 4: Simplify right side
    272,873,959.80x = 41,060,054,380,769,552
  5. Step 5: Solve for x
    x = 41,060,054,380,769,552/272,873,959.80
  6. Step 6: Final answer
    x = 150,472,600.65

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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.