Home / 8,749,015.20-13,123,522.80-7,867,216.80

Finding the Fourth Proportional to 8,749,015.20, 13,123,522.80 and 7,867,216.80

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Solution

The fourth proportional to 8,749,015.20, 13,123,522.80 and 7,867,216.80 is: 11,800,825.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,749,015.20 : 13,123,522.80 = 7,867,216.80 : x
  2. Step 2: Convert to fraction form
    8,749,015.20/13,123,522.80 = 7,867,216.80/x
  3. Step 3: Cross multiply
    8,749,015.20x = 13,123,522.80 × 7,867,216.80
  4. Step 4: Simplify right side
    8,749,015.20x = 103,245,599,047,343.05
  5. Step 5: Solve for x
    x = 103,245,599,047,343.05/8,749,015.20
  6. Step 6: Final answer
    x = 11,800,825.20

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1.5x scale

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.