Home / 21,519,536.72-29,696,066.92-11,729,765.52

Finding the Fourth Proportional to 21,519,536.72, 29,696,066.92 and 11,729,765.52

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Solution

The fourth proportional to 21,519,536.72, 29,696,066.92 and 11,729,765.52 is: 16,186,589.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,519,536.72 : 29,696,066.92 = 11,729,765.52 : x
  2. Step 2: Convert to fraction form
    21,519,536.72/29,696,066.92 = 11,729,765.52/x
  3. Step 3: Cross multiply
    21,519,536.72x = 29,696,066.92 × 11,729,765.52
  4. Step 4: Simplify right side
    21,519,536.72x = 348,327,901,837,828.62
  5. Step 5: Solve for x
    x = 348,327,901,837,828.62/21,519,536.72
  6. Step 6: Final answer
    x = 16,186,589.25

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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.