Home / 746,753,007.80-1,120,129,511.70-672,776,420.60

Finding the Fourth Proportional to 746,753,007.80, 1,120,129,511.70 and 672,776,420.60

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Solution

The fourth proportional to 746,753,007.80, 1,120,129,511.70 and 672,776,420.60 is: 1,009,164,630.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,753,007.80 : 1,120,129,511.70 = 672,776,420.60 : x
  2. Step 2: Convert to fraction form
    746,753,007.80/1,120,129,511.70 = 672,776,420.60/x
  3. Step 3: Cross multiply
    746,753,007.80x = 1,120,129,511.70 × 672,776,420.60
  4. Step 4: Simplify right side
    746,753,007.80x = 753,596,723,489,951,872
  5. Step 5: Solve for x
    x = 753,596,723,489,951,872/746,753,007.80
  6. Step 6: Final answer
    x = 1,009,164,630.90

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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.