Home / 15,131,424-20,856,971.96-10,234,860.40

Finding the Fourth Proportional to 15,131,424, 20,856,971.96 and 10,234,860.40

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Solution

The fourth proportional to 15,131,424, 20,856,971.96 and 10,234,860.40 is: 14,107,607.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,131,424 : 20,856,971.96 = 10,234,860.40 : x
  2. Step 2: Convert to fraction form
    15,131,424/20,856,971.96 = 10,234,860.40/x
  3. Step 3: Cross multiply
    15,131,424x = 20,856,971.96 × 10,234,860.40
  4. Step 4: Simplify right side
    15,131,424x = 213,468,196,377,314.41
  5. Step 5: Solve for x
    x = 213,468,196,377,314.41/15,131,424
  6. Step 6: Final answer
    x = 14,107,607.87

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.