Home / 9,390,621.69-12,971,214.15-7,765,593.21

Finding the Fourth Proportional to 9,390,621.69, 12,971,214.15 and 7,765,593.21

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Solution

The fourth proportional to 9,390,621.69, 12,971,214.15 and 7,765,593.21 is: 10,726,571.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,390,621.69 : 12,971,214.15 = 7,765,593.21 : x
  2. Step 2: Convert to fraction form
    9,390,621.69/12,971,214.15 = 7,765,593.21/x
  3. Step 3: Cross multiply
    9,390,621.69x = 12,971,214.15 × 7,765,593.21
  4. Step 4: Simplify right side
    9,390,621.69x = 100,729,172,425,011.88
  5. Step 5: Solve for x
    x = 100,729,172,425,011.88/9,390,621.69
  6. Step 6: Final answer
    x = 10,726,571.23

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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.