Home / 20,645,876.90-30,968,815.35-7,182,704.90

Finding the Fourth Proportional to 20,645,876.90, 30,968,815.35 and 7,182,704.90

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Solution

The fourth proportional to 20,645,876.90, 30,968,815.35 and 7,182,704.90 is: 10,774,057.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,645,876.90 : 30,968,815.35 = 7,182,704.90 : x
  2. Step 2: Convert to fraction form
    20,645,876.90/30,968,815.35 = 7,182,704.90/x
  3. Step 3: Cross multiply
    20,645,876.90x = 30,968,815.35 × 7,182,704.90
  4. Step 4: Simplify right side
    20,645,876.90x = 222,439,861,761,640.25
  5. Step 5: Solve for x
    x = 222,439,861,761,640.25/20,645,876.90
  6. Step 6: Final answer
    x = 10,774,057.35

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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.