Home / 21,543,003.18-29,729,199.48-12,250,576.86

Finding the Fourth Proportional to 21,543,003.18, 29,729,199.48 and 12,250,576.86

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Solution

The fourth proportional to 21,543,003.18, 29,729,199.48 and 12,250,576.86 is: 16,905,713.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,543,003.18 : 29,729,199.48 = 12,250,576.86 : x
  2. Step 2: Convert to fraction form
    21,543,003.18/29,729,199.48 = 12,250,576.86/x
  3. Step 3: Cross multiply
    21,543,003.18x = 29,729,199.48 × 12,250,576.86
  4. Step 4: Simplify right side
    21,543,003.18x = 364,199,843,216,012
  5. Step 5: Solve for x
    x = 364,199,843,216,012/21,543,003.18
  6. Step 6: Final answer
    x = 16,905,713.66

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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.