Home / 12,551,989.20-18,819,126.45-5,731,829.70

Finding the Fourth Proportional to 12,551,989.20, 18,819,126.45 and 5,731,829.70

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Solution

The fourth proportional to 12,551,989.20, 18,819,126.45 and 5,731,829.70 is: 8,593,699.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,551,989.20 : 18,819,126.45 = 5,731,829.70 : x
  2. Step 2: Convert to fraction form
    12,551,989.20/18,819,126.45 = 5,731,829.70/x
  3. Step 3: Cross multiply
    12,551,989.20x = 18,819,126.45 × 5,731,829.70
  4. Step 4: Simplify right side
    12,551,989.20x = 107,868,027,914,165.56
  5. Step 5: Solve for x
    x = 107,868,027,914,165.56/12,551,989.20
  6. Step 6: Final answer
    x = 8,593,699.87

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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.