Home / 7,247,148.72-10,872,400.68-2,129,656.56

Finding the Fourth Proportional to 7,247,148.72, 10,872,400.68 and 2,129,656.56

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Solution

The fourth proportional to 7,247,148.72, 10,872,400.68 and 2,129,656.56 is: 3,194,977.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,247,148.72 : 10,872,400.68 = 2,129,656.56 : x
  2. Step 2: Convert to fraction form
    7,247,148.72/10,872,400.68 = 2,129,656.56/x
  3. Step 3: Cross multiply
    7,247,148.72x = 10,872,400.68 × 2,129,656.56
  4. Step 4: Simplify right side
    7,247,148.72x = 23,154,479,431,110.46
  5. Step 5: Solve for x
    x = 23,154,479,431,110.46/7,247,148.72
  6. Step 6: Final answer
    x = 3,194,977.82

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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.