Home / 20,458,431.24-28,232,234.56-11,166,067.84

Finding the Fourth Proportional to 20,458,431.24, 28,232,234.56 and 11,166,067.84

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Solution

The fourth proportional to 20,458,431.24, 28,232,234.56 and 11,166,067.84 is: 15,408,955.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,458,431.24 : 28,232,234.56 = 11,166,067.84 : x
  2. Step 2: Convert to fraction form
    20,458,431.24/28,232,234.56 = 11,166,067.84/x
  3. Step 3: Cross multiply
    20,458,431.24x = 28,232,234.56 × 11,166,067.84
  4. Step 4: Simplify right side
    20,458,431.24x = 315,243,046,371,752.50
  5. Step 5: Solve for x
    x = 315,243,046,371,752.50/20,458,431.24
  6. Step 6: Final answer
    x = 15,408,955.00

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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.