Home / 766,476,121.80-1,149,714,182.70-442,982,080.20

Finding the Fourth Proportional to 766,476,121.80, 1,149,714,182.70 and 442,982,080.20

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Solution

The fourth proportional to 766,476,121.80, 1,149,714,182.70 and 442,982,080.20 is: 664,473,120.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,476,121.80 : 1,149,714,182.70 = 442,982,080.20 : x
  2. Step 2: Convert to fraction form
    766,476,121.80/1,149,714,182.70 = 442,982,080.20/x
  3. Step 3: Cross multiply
    766,476,121.80x = 1,149,714,182.70 × 442,982,080.20
  4. Step 4: Simplify right side
    766,476,121.80x = 509,302,780,287,888,832
  5. Step 5: Solve for x
    x = 509,302,780,287,888,832/766,476,121.80
  6. Step 6: Final answer
    x = 664,473,120.30

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1.5x scale

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.