Home / 7,928,220.89-10,942,478.60-5,170,119.92

Finding the Fourth Proportional to 7,928,220.89, 10,942,478.60 and 5,170,119.92

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Solution

The fourth proportional to 7,928,220.89, 10,942,478.60 and 5,170,119.92 is: 7,135,765.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,928,220.89 : 10,942,478.60 = 5,170,119.92 : x
  2. Step 2: Convert to fraction form
    7,928,220.89/10,942,478.60 = 5,170,119.92/x
  3. Step 3: Cross multiply
    7,928,220.89x = 10,942,478.60 × 5,170,119.92
  4. Step 4: Simplify right side
    7,928,220.89x = 56,573,926,503,470.73
  5. Step 5: Solve for x
    x = 56,573,926,503,470.73/7,928,220.89
  6. Step 6: Final answer
    x = 7,135,765.68

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.