Home / 21,498,390-29,667,778.20-11,840,598

Finding the Fourth Proportional to 21,498,390, 29,667,778.20 and 11,840,598

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Solution

The fourth proportional to 21,498,390, 29,667,778.20 and 11,840,598 is: 16,340,025.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,498,390 : 29,667,778.20 = 11,840,598 : x
  2. Step 2: Convert to fraction form
    21,498,390/29,667,778.20 = 11,840,598/x
  3. Step 3: Cross multiply
    21,498,390x = 29,667,778.20 × 11,840,598
  4. Step 4: Simplify right side
    21,498,390x = 351,284,235,219,363.56
  5. Step 5: Solve for x
    x = 351,284,235,219,363.56/21,498,390
  6. Step 6: Final answer
    x = 16,340,025.24

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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.