Home / 15,106,705.86-20,847,257.07-8,231,187.90

Finding the Fourth Proportional to 15,106,705.86, 20,847,257.07 and 8,231,187.90

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Solution

The fourth proportional to 15,106,705.86, 20,847,257.07 and 8,231,187.90 is: 11,359,040.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,106,705.86 : 20,847,257.07 = 8,231,187.90 : x
  2. Step 2: Convert to fraction form
    15,106,705.86/20,847,257.07 = 8,231,187.90/x
  3. Step 3: Cross multiply
    15,106,705.86x = 20,847,257.07 × 8,231,187.90
  4. Step 4: Simplify right side
    15,106,705.86x = 171,597,690,142,773.47
  5. Step 5: Solve for x
    x = 171,597,690,142,773.47/15,106,705.86
  6. Step 6: Final answer
    x = 11,359,040.93

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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.