Home / 13,691,587.29-18,888,852.92-8,181,817.44

Finding the Fourth Proportional to 13,691,587.29, 18,888,852.92 and 8,181,817.44

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Solution

The fourth proportional to 13,691,587.29, 18,888,852.92 and 8,181,817.44 is: 11,287,598.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,691,587.29 : 18,888,852.92 = 8,181,817.44 : x
  2. Step 2: Convert to fraction form
    13,691,587.29/18,888,852.92 = 8,181,817.44/x
  3. Step 3: Cross multiply
    13,691,587.29x = 18,888,852.92 × 8,181,817.44
  4. Step 4: Simplify right side
    13,691,587.29x = 154,545,146,236,958.41
  5. Step 5: Solve for x
    x = 154,545,146,236,958.41/13,691,587.29
  6. Step 6: Final answer
    x = 11,287,598.94

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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.