Home / 3,675,142.40-5,510,455.68-1,428,661.76

Finding the Fourth Proportional to 3,675,142.40, 5,510,455.68 and 1,428,661.76

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Solution

The fourth proportional to 3,675,142.40, 5,510,455.68 and 1,428,661.76 is: 2,142,114.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,675,142.40 : 5,510,455.68 = 1,428,661.76 : x
  2. Step 2: Convert to fraction form
    3,675,142.40/5,510,455.68 = 1,428,661.76/x
  3. Step 3: Cross multiply
    3,675,142.40x = 5,510,455.68 × 1,428,661.76
  4. Step 4: Simplify right side
    3,675,142.40x = 7,872,577,310,190.80
  5. Step 5: Solve for x
    x = 7,872,577,310,190.80/3,675,142.40
  6. Step 6: Final answer
    x = 2,142,114.90

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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.