Home / 20,232,843.12-27,919,635.54-11,411,808.24

Finding the Fourth Proportional to 20,232,843.12, 27,919,635.54 and 11,411,808.24

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Solution

The fourth proportional to 20,232,843.12, 27,919,635.54 and 11,411,808.24 is: 15,747,343.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,232,843.12 : 27,919,635.54 = 11,411,808.24 : x
  2. Step 2: Convert to fraction form
    20,232,843.12/27,919,635.54 = 11,411,808.24/x
  3. Step 3: Cross multiply
    20,232,843.12x = 27,919,635.54 × 11,411,808.24
  4. Step 4: Simplify right side
    20,232,843.12x = 318,613,526,913,168.88
  5. Step 5: Solve for x
    x = 318,613,526,913,168.88/20,232,843.12
  6. Step 6: Final answer
    x = 15,747,343.32

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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.