Home / 21,668,711.46-29,902,630.77-11,878,977.66

Finding the Fourth Proportional to 21,668,711.46, 29,902,630.77 and 11,878,977.66

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Solution

The fourth proportional to 21,668,711.46, 29,902,630.77 and 11,878,977.66 is: 16,392,884.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,668,711.46 : 29,902,630.77 = 11,878,977.66 : x
  2. Step 2: Convert to fraction form
    21,668,711.46/29,902,630.77 = 11,878,977.66/x
  3. Step 3: Cross multiply
    21,668,711.46x = 29,902,630.77 × 11,878,977.66
  4. Step 4: Simplify right side
    21,668,711.46x = 355,212,682,892,058.62
  5. Step 5: Solve for x
    x = 355,212,682,892,058.62/21,668,711.46
  6. Step 6: Final answer
    x = 16,392,884.44

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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.