Home / 207,988,826.90-311,899,259.55-71,604,007.70

Finding the Fourth Proportional to 207,988,826.90, 311,899,259.55 and 71,604,007.70

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Solution

The fourth proportional to 207,988,826.90, 311,899,259.55 and 71,604,007.70 is: 107,377,099.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,988,826.90 : 311,899,259.55 = 71,604,007.70 : x
  2. Step 2: Convert to fraction form
    207,988,826.90/311,899,259.55 = 71,604,007.70/x
  3. Step 3: Cross multiply
    207,988,826.90x = 311,899,259.55 × 71,604,007.70
  4. Step 4: Simplify right side
    207,988,826.90x = 22,333,236,982,442,500
  5. Step 5: Solve for x
    x = 22,333,236,982,442,500/207,988,826.90
  6. Step 6: Final answer
    x = 107,377,099.60

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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.