Home / 21,902,452.21-30,222,026.46-12,608,226.48

Finding the Fourth Proportional to 21,902,452.21, 30,222,026.46 and 12,608,226.48

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Solution

The fourth proportional to 21,902,452.21, 30,222,026.46 and 12,608,226.48 is: 17,397,419.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,902,452.21 : 30,222,026.46 = 12,608,226.48 : x
  2. Step 2: Convert to fraction form
    21,902,452.21/30,222,026.46 = 12,608,226.48/x
  3. Step 3: Cross multiply
    21,902,452.21x = 30,222,026.46 × 12,608,226.48
  4. Step 4: Simplify right side
    21,902,452.21x = 381,046,154,292,232.69
  5. Step 5: Solve for x
    x = 381,046,154,292,232.69/21,902,452.21
  6. Step 6: Final answer
    x = 17,397,419.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.