Home / 20,377,668.88-28,121,415.24-11,675,666.80

Finding the Fourth Proportional to 20,377,668.88, 28,121,415.24 and 11,675,666.80

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Solution

The fourth proportional to 20,377,668.88, 28,121,415.24 and 11,675,666.80 is: 16,112,553.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,377,668.88 : 28,121,415.24 = 11,675,666.80 : x
  2. Step 2: Convert to fraction form
    20,377,668.88/28,121,415.24 = 11,675,666.80/x
  3. Step 3: Cross multiply
    20,377,668.88x = 28,121,415.24 × 11,675,666.80
  4. Step 4: Simplify right side
    20,377,668.88x = 328,336,274,286,682.06
  5. Step 5: Solve for x
    x = 328,336,274,286,682.06/20,377,668.88
  6. Step 6: Final answer
    x = 16,112,553.22

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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.