Home / 20,790,452.02-31,183,295.40-5,439,223.09

Finding the Fourth Proportional to 20,790,452.02, 31,183,295.40 and 5,439,223.09

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Solution

The fourth proportional to 20,790,452.02, 31,183,295.40 and 5,439,223.09 is: 8,158,211.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,790,452.02 : 31,183,295.40 = 5,439,223.09 : x
  2. Step 2: Convert to fraction form
    20,790,452.02/31,183,295.40 = 5,439,223.09/x
  3. Step 3: Cross multiply
    20,790,452.02x = 31,183,295.40 × 5,439,223.09
  4. Step 4: Simplify right side
    20,790,452.02x = 169,612,900,361,970.78
  5. Step 5: Solve for x
    x = 169,612,900,361,970.78/20,790,452.02
  6. Step 6: Final answer
    x = 8,158,211.29

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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.