Home / 207,660,674.70-311,491,012.05-86,476,380.30

Finding the Fourth Proportional to 207,660,674.70, 311,491,012.05 and 86,476,380.30

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Solution

The fourth proportional to 207,660,674.70, 311,491,012.05 and 86,476,380.30 is: 129,714,570.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,660,674.70 : 311,491,012.05 = 86,476,380.30 : x
  2. Step 2: Convert to fraction form
    207,660,674.70/311,491,012.05 = 86,476,380.30/x
  3. Step 3: Cross multiply
    207,660,674.70x = 311,491,012.05 × 86,476,380.30
  4. Step 4: Simplify right side
    207,660,674.70x = 26,936,615,218,067,684
  5. Step 5: Solve for x
    x = 26,936,615,218,067,684/207,660,674.70
  6. Step 6: Final answer
    x = 129,714,570.45

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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.