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Finding the Fourth Proportional to 265,738,951.20, 398,608,426.80 and 240,229,783.20

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Solution

The fourth proportional to 265,738,951.20, 398,608,426.80 and 240,229,783.20 is: 360,344,674.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,738,951.20 : 398,608,426.80 = 240,229,783.20 : x
  2. Step 2: Convert to fraction form
    265,738,951.20/398,608,426.80 = 240,229,783.20/x
  3. Step 3: Cross multiply
    265,738,951.20x = 398,608,426.80 × 240,229,783.20
  4. Step 4: Simplify right side
    265,738,951.20x = 95,757,615,951,857,072
  5. Step 5: Solve for x
    x = 95,757,615,951,857,072/265,738,951.20
  6. Step 6: Final answer
    x = 360,344,674.80

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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.