Home / 5,428,647.90-8,147,564.55-2,236,065.30

Finding the Fourth Proportional to 5,428,647.90, 8,147,564.55 and 2,236,065.30

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Solution

The fourth proportional to 5,428,647.90, 8,147,564.55 and 2,236,065.30 is: 3,355,989.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428,647.90 : 8,147,564.55 = 2,236,065.30 : x
  2. Step 2: Convert to fraction form
    5,428,647.90/8,147,564.55 = 2,236,065.30/x
  3. Step 3: Cross multiply
    5,428,647.90x = 8,147,564.55 × 2,236,065.30
  4. Step 4: Simplify right side
    5,428,647.90x = 18,218,486,369,765.11
  5. Step 5: Solve for x
    x = 18,218,486,369,765.11/5,428,647.90
  6. Step 6: Final answer
    x = 3,355,989.69

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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.