Home / 221,443,802.70-332,165,704.05-205,319,489.10

Finding the Fourth Proportional to 221,443,802.70, 332,165,704.05 and 205,319,489.10

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Solution

The fourth proportional to 221,443,802.70, 332,165,704.05 and 205,319,489.10 is: 307,979,233.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,443,802.70 : 332,165,704.05 = 205,319,489.10 : x
  2. Step 2: Convert to fraction form
    221,443,802.70/332,165,704.05 = 205,319,489.10/x
  3. Step 3: Cross multiply
    221,443,802.70x = 332,165,704.05 × 205,319,489.10
  4. Step 4: Simplify right side
    221,443,802.70x = 68,200,092,652,087,800
  5. Step 5: Solve for x
    x = 68,200,092,652,087,800/221,443,802.70
  6. Step 6: Final answer
    x = 307,979,233.65

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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.