Home / 20,377,824.75-28,122,132.39-11,677,678.74

Finding the Fourth Proportional to 20,377,824.75, 28,122,132.39 and 11,677,678.74

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Solution

The fourth proportional to 20,377,824.75, 28,122,132.39 and 11,677,678.74 is: 16,115,617.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,377,824.75 : 28,122,132.39 = 11,677,678.74 : x
  2. Step 2: Convert to fraction form
    20,377,824.75/28,122,132.39 = 11,677,678.74/x
  3. Step 3: Cross multiply
    20,377,824.75x = 28,122,132.39 × 11,677,678.74
  4. Step 4: Simplify right side
    20,377,824.75x = 328,401,227,534,168.38
  5. Step 5: Solve for x
    x = 328,401,227,534,168.38/20,377,824.75
  6. Step 6: Final answer
    x = 16,115,617.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.