Home / 8,128,925.68-12,193,881.05-3,271,213.57

Finding the Fourth Proportional to 8,128,925.68, 12,193,881.05 and 3,271,213.57

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Solution

The fourth proportional to 8,128,925.68, 12,193,881.05 and 3,271,213.57 is: 4,907,018.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,128,925.68 : 12,193,881.05 = 3,271,213.57 : x
  2. Step 2: Convert to fraction form
    8,128,925.68/12,193,881.05 = 3,271,213.57/x
  3. Step 3: Cross multiply
    8,128,925.68x = 12,193,881.05 × 3,271,213.57
  4. Step 4: Simplify right side
    8,128,925.68x = 39,888,789,115,440.93
  5. Step 5: Solve for x
    x = 39,888,789,115,440.93/8,128,925.68
  6. Step 6: Final answer
    x = 4,907,018.55

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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.