Home / 20,414,721.60-30,622,082.40-13,612,276.80

Finding the Fourth Proportional to 20,414,721.60, 30,622,082.40 and 13,612,276.80

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Solution

The fourth proportional to 20,414,721.60, 30,622,082.40 and 13,612,276.80 is: 20,418,415.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,414,721.60 : 30,622,082.40 = 13,612,276.80 : x
  2. Step 2: Convert to fraction form
    20,414,721.60/30,622,082.40 = 13,612,276.80/x
  3. Step 3: Cross multiply
    20,414,721.60x = 30,622,082.40 × 13,612,276.80
  4. Step 4: Simplify right side
    20,414,721.60x = 416,836,261,821,208.31
  5. Step 5: Solve for x
    x = 416,836,261,821,208.31/20,414,721.60
  6. Step 6: Final answer
    x = 20,418,415.20

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1.5x scale

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.