Home / 7,189,400.86-9,921,452.16-3,926,311.60

Finding the Fourth Proportional to 7,189,400.86, 9,921,452.16 and 3,926,311.60

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Solution

The fourth proportional to 7,189,400.86, 9,921,452.16 and 3,926,311.60 is: 5,418,353.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,189,400.86 : 9,921,452.16 = 3,926,311.60 : x
  2. Step 2: Convert to fraction form
    7,189,400.86/9,921,452.16 = 3,926,311.60/x
  3. Step 3: Cross multiply
    7,189,400.86x = 9,921,452.16 × 3,926,311.60
  4. Step 4: Simplify right side
    7,189,400.86x = 38,954,712,704,653.05
  5. Step 5: Solve for x
    x = 38,954,712,704,653.05/7,189,400.86
  6. Step 6: Final answer
    x = 5,418,353.14

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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.