Home / 3,428,105.40-5,138,658.90-2,007,430.20

Finding the Fourth Proportional to 3,428,105.40, 5,138,658.90 and 2,007,430.20

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Solution

The fourth proportional to 3,428,105.40, 5,138,658.90 and 2,007,430.20 is: 3,009,096.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428,105.40 : 5,138,658.90 = 2,007,430.20 : x
  2. Step 2: Convert to fraction form
    3,428,105.40/5,138,658.90 = 2,007,430.20/x
  3. Step 3: Cross multiply
    3,428,105.40x = 5,138,658.90 × 2,007,430.20
  4. Step 4: Simplify right side
    3,428,105.40x = 10,315,499,063,358.78
  5. Step 5: Solve for x
    x = 10,315,499,063,358.78/3,428,105.40
  6. Step 6: Final answer
    x = 3,009,096.24

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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.