Home / 8,085,367.60-12,128,051.40-7,288,206.10

Finding the Fourth Proportional to 8,085,367.60, 12,128,051.40 and 7,288,206.10

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Solution

The fourth proportional to 8,085,367.60, 12,128,051.40 and 7,288,206.10 is: 10,932,309.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,085,367.60 : 12,128,051.40 = 7,288,206.10 : x
  2. Step 2: Convert to fraction form
    8,085,367.60/12,128,051.40 = 7,288,206.10/x
  3. Step 3: Cross multiply
    8,085,367.60x = 12,128,051.40 × 7,288,206.10
  4. Step 4: Simplify right side
    8,085,367.60x = 88,391,738,194,593.53
  5. Step 5: Solve for x
    x = 88,391,738,194,593.53/8,085,367.60
  6. Step 6: Final answer
    x = 10,932,309.15

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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.