Home / 8,515,247.40-12,772,871.10-5,491,938.60

Finding the Fourth Proportional to 8,515,247.40, 12,772,871.10 and 5,491,938.60

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Solution

The fourth proportional to 8,515,247.40, 12,772,871.10 and 5,491,938.60 is: 8,237,907.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,515,247.40 : 12,772,871.10 = 5,491,938.60 : x
  2. Step 2: Convert to fraction form
    8,515,247.40/12,772,871.10 = 5,491,938.60/x
  3. Step 3: Cross multiply
    8,515,247.40x = 12,772,871.10 × 5,491,938.60
  4. Step 4: Simplify right side
    8,515,247.40x = 70,147,823,826,914.45
  5. Step 5: Solve for x
    x = 70,147,823,826,914.45/8,515,247.40
  6. Step 6: Final answer
    x = 8,237,907.90

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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.