Home / 11,921,799.90-17,877,319.77-3,400,110.78

Finding the Fourth Proportional to 11,921,799.90, 17,877,319.77 and 3,400,110.78

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Solution

The fourth proportional to 11,921,799.90, 17,877,319.77 and 3,400,110.78 is: 5,098,631.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,921,799.90 : 17,877,319.77 = 3,400,110.78 : x
  2. Step 2: Convert to fraction form
    11,921,799.90/17,877,319.77 = 3,400,110.78/x
  3. Step 3: Cross multiply
    11,921,799.90x = 17,877,319.77 × 3,400,110.78
  4. Step 4: Simplify right side
    11,921,799.90x = 60,784,867,667,484.12
  5. Step 5: Solve for x
    x = 60,784,867,667,484.12/11,921,799.90
  6. Step 6: Final answer
    x = 5,098,631.77

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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.