Home / 15,213,991.36-20,992,205.28-9,016,306.24

Finding the Fourth Proportional to 15,213,991.36, 20,992,205.28 and 9,016,306.24

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Solution

The fourth proportional to 15,213,991.36, 20,992,205.28 and 9,016,306.24 is: 12,440,663.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,213,991.36 : 20,992,205.28 = 9,016,306.24 : x
  2. Step 2: Convert to fraction form
    15,213,991.36/20,992,205.28 = 9,016,306.24/x
  3. Step 3: Cross multiply
    15,213,991.36x = 20,992,205.28 × 9,016,306.24
  4. Step 4: Simplify right side
    15,213,991.36x = 189,272,151,457,424.97
  5. Step 5: Solve for x
    x = 189,272,151,457,424.97/15,213,991.36
  6. Step 6: Final answer
    x = 12,440,663.79

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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.