Home / 8,085,368.10-12,128,052.15-7,288,206.60

Finding the Fourth Proportional to 8,085,368.10, 12,128,052.15 and 7,288,206.60

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Solution

The fourth proportional to 8,085,368.10, 12,128,052.15 and 7,288,206.60 is: 10,932,309.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,085,368.10 : 12,128,052.15 = 7,288,206.60 : x
  2. Step 2: Convert to fraction form
    8,085,368.10/12,128,052.15 = 7,288,206.60/x
  3. Step 3: Cross multiply
    8,085,368.10x = 12,128,052.15 × 7,288,206.60
  4. Step 4: Simplify right side
    8,085,368.10x = 88,391,749,724,774.19
  5. Step 5: Solve for x
    x = 88,391,749,724,774.19/8,085,368.10
  6. Step 6: Final answer
    x = 10,932,309.90

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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.