Home / 8,209,725.76-12,309,372.30-7,200,873.40

Finding the Fourth Proportional to 8,209,725.76, 12,309,372.30 and 7,200,873.40

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Solution

The fourth proportional to 8,209,725.76, 12,309,372.30 and 7,200,873.40 is: 10,796,734.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,209,725.76 : 12,309,372.30 = 7,200,873.40 : x
  2. Step 2: Convert to fraction form
    8,209,725.76/12,309,372.30 = 7,200,873.40/x
  3. Step 3: Cross multiply
    8,209,725.76x = 12,309,372.30 × 7,200,873.40
  4. Step 4: Simplify right side
    8,209,725.76x = 88,638,231,565,766.83
  5. Step 5: Solve for x
    x = 88,638,231,565,766.83/8,209,725.76
  6. Step 6: Final answer
    x = 10,796,734.77

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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.