Home / 12,551,985.70-18,819,121.20-5,731,826.20

Finding the Fourth Proportional to 12,551,985.70, 18,819,121.20 and 5,731,826.20

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Solution

The fourth proportional to 12,551,985.70, 18,819,121.20 and 5,731,826.20 is: 8,593,694.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,551,985.70 : 18,819,121.20 = 5,731,826.20 : x
  2. Step 2: Convert to fraction form
    12,551,985.70/18,819,121.20 = 5,731,826.20/x
  3. Step 3: Cross multiply
    12,551,985.70x = 18,819,121.20 × 5,731,826.20
  4. Step 4: Simplify right side
    12,551,985.70x = 107,867,931,955,135.44
  5. Step 5: Solve for x
    x = 107,867,931,955,135.44/12,551,985.70
  6. Step 6: Final answer
    x = 8,593,694.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.