Home / 15,261,318.92-21,060,615.29-8,386,243.85

Finding the Fourth Proportional to 15,261,318.92, 21,060,615.29 and 8,386,243.85

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Solution

The fourth proportional to 15,261,318.92, 21,060,615.29 and 8,386,243.85 is: 11,573,013.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,261,318.92 : 21,060,615.29 = 8,386,243.85 : x
  2. Step 2: Convert to fraction form
    15,261,318.92/21,060,615.29 = 8,386,243.85/x
  3. Step 3: Cross multiply
    15,261,318.92x = 21,060,615.29 × 8,386,243.85
  4. Step 4: Simplify right side
    15,261,318.92x = 176,619,455,505,630
  5. Step 5: Solve for x
    x = 176,619,455,505,630/15,261,318.92
  6. Step 6: Final answer
    x = 11,573,013.87

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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.