Home / 12,798,013.90-19,204,106.60-7,667,836.78

Finding the Fourth Proportional to 12,798,013.90, 19,204,106.60 and 7,667,836.78

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Solution

The fourth proportional to 12,798,013.90, 19,204,106.60 and 7,667,836.78 is: 11,506,000.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,798,013.90 : 19,204,106.60 = 7,667,836.78 : x
  2. Step 2: Convert to fraction form
    12,798,013.90/19,204,106.60 = 7,667,836.78/x
  3. Step 3: Cross multiply
    12,798,013.90x = 19,204,106.60 × 7,667,836.78
  4. Step 4: Simplify right side
    12,798,013.90x = 147,253,954,914,520.75
  5. Step 5: Solve for x
    x = 147,253,954,914,520.75/12,798,013.90
  6. Step 6: Final answer
    x = 11,506,000.55

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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.