Home / 300,016,331.68-413,997,511.44-278,080,546.72

Finding the Fourth Proportional to 300,016,331.68, 413,997,511.44 and 278,080,546.72

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Solution

The fourth proportional to 300,016,331.68, 413,997,511.44 and 278,080,546.72 is: 383,727,958.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,016,331.68 : 413,997,511.44 = 278,080,546.72 : x
  2. Step 2: Convert to fraction form
    300,016,331.68/413,997,511.44 = 278,080,546.72/x
  3. Step 3: Cross multiply
    300,016,331.68x = 413,997,511.44 × 278,080,546.72
  4. Step 4: Simplify right side
    300,016,331.68x = 115,124,654,321,954,672
  5. Step 5: Solve for x
    x = 115,124,654,321,954,672/300,016,331.68
  6. Step 6: Final answer
    x = 383,727,958.00

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1.5x scale

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.