Home / 20,801,830.32-31,207,001.15-7,153,204.14

Finding the Fourth Proportional to 20,801,830.32, 31,207,001.15 and 7,153,204.14

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Solution

The fourth proportional to 20,801,830.32, 31,207,001.15 and 7,153,204.14 is: 10,731,269.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,801,830.32 : 31,207,001.15 = 7,153,204.14 : x
  2. Step 2: Convert to fraction form
    20,801,830.32/31,207,001.15 = 7,153,204.14/x
  3. Step 3: Cross multiply
    20,801,830.32x = 31,207,001.15 × 7,153,204.14
  4. Step 4: Simplify right side
    20,801,830.32x = 223,230,049,787,398.72
  5. Step 5: Solve for x
    x = 223,230,049,787,398.72/20,801,830.32
  6. Step 6: Final answer
    x = 10,731,269.62

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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.