Home / 9,390,621.91-12,971,214.45-7,765,593.43

Finding the Fourth Proportional to 9,390,621.91, 12,971,214.45 and 7,765,593.43

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Solution

The fourth proportional to 9,390,621.91, 12,971,214.45 and 7,765,593.43 is: 10,726,571.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,390,621.91 : 12,971,214.45 = 7,765,593.43 : x
  2. Step 2: Convert to fraction form
    9,390,621.91/12,971,214.45 = 7,765,593.43/x
  3. Step 3: Cross multiply
    9,390,621.91x = 12,971,214.45 × 7,765,593.43
  4. Step 4: Simplify right side
    9,390,621.91x = 100,729,177,712,041.05
  5. Step 5: Solve for x
    x = 100,729,177,712,041.05/9,390,621.91
  6. Step 6: Final answer
    x = 10,726,571.54

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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.