Home / 20,799,187.52-28,702,780.80-11,631,866.72

Finding the Fourth Proportional to 20,799,187.52, 28,702,780.80 and 11,631,866.72

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Solution

The fourth proportional to 20,799,187.52, 28,702,780.80 and 11,631,866.72 is: 16,051,921.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,799,187.52 : 28,702,780.80 = 11,631,866.72 : x
  2. Step 2: Convert to fraction form
    20,799,187.52/28,702,780.80 = 11,631,866.72/x
  3. Step 3: Cross multiply
    20,799,187.52x = 28,702,780.80 × 11,631,866.72
  4. Step 4: Simplify right side
    20,799,187.52x = 333,866,920,758,975
  5. Step 5: Solve for x
    x = 333,866,920,758,975/20,799,187.52
  6. Step 6: Final answer
    x = 16,051,921.28

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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.