Home / 689,593,847.10-1,034,388,049.05-204,919,655.10

Finding the Fourth Proportional to 689,593,847.10, 1,034,388,049.05 and 204,919,655.10

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Solution

The fourth proportional to 689,593,847.10, 1,034,388,049.05 and 204,919,655.10 is: 307,378,673.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,593,847.10 : 1,034,388,049.05 = 204,919,655.10 : x
  2. Step 2: Convert to fraction form
    689,593,847.10/1,034,388,049.05 = 204,919,655.10/x
  3. Step 3: Cross multiply
    689,593,847.10x = 1,034,388,049.05 × 204,919,655.10
  4. Step 4: Simplify right side
    689,593,847.10x = 211,966,442,250,887,872
  5. Step 5: Solve for x
    x = 211,966,442,250,887,872/689,593,847.10
  6. Step 6: Final answer
    x = 307,378,673.90

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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.