Home / 1,131,500,008.32-1,561,385,599.92-636,367,057.44

Finding the Fourth Proportional to 1,131,500,008.32, 1,561,385,599.92 and 636,367,057.44

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Solution

The fourth proportional to 1,131,500,008.32, 1,561,385,599.92 and 636,367,057.44 is: 878,139,065.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,500,008.32 : 1,561,385,599.92 = 636,367,057.44 : x
  2. Step 2: Convert to fraction form
    1,131,500,008.32/1,561,385,599.92 = 636,367,057.44/x
  3. Step 3: Cross multiply
    1,131,500,008.32x = 1,561,385,599.92 × 636,367,057.44
  4. Step 4: Simplify right side
    1,131,500,008.32x = 993,614,359,750,279,680
  5. Step 5: Solve for x
    x = 993,614,359,750,279,680/1,131,500,008.32
  6. Step 6: Final answer
    x = 878,139,065.35

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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.