Home / 1,126,916,686.40-1,690,375,029.60-691,560,219.20

Finding the Fourth Proportional to 1,126,916,686.40, 1,690,375,029.60 and 691,560,219.20

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Solution

The fourth proportional to 1,126,916,686.40, 1,690,375,029.60 and 691,560,219.20 is: 1,037,340,328.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,916,686.40 : 1,690,375,029.60 = 691,560,219.20 : x
  2. Step 2: Convert to fraction form
    1,126,916,686.40/1,690,375,029.60 = 691,560,219.20/x
  3. Step 3: Cross multiply
    1,126,916,686.40x = 1,690,375,029.60 × 691,560,219.20
  4. Step 4: Simplify right side
    1,126,916,686.40x = 1,168,996,126,000,382,464
  5. Step 5: Solve for x
    x = 1,168,996,126,000,382,464/1,126,916,686.40
  6. Step 6: Final answer
    x = 1,037,340,328.80

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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.