Home / 20,807,156.09-31,176,651.56-11,081,443.16

Finding the Fourth Proportional to 20,807,156.09, 31,176,651.56 and 11,081,443.16

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Solution

The fourth proportional to 20,807,156.09, 31,176,651.56 and 11,081,443.16 is: 16,604,013.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,807,156.09 : 31,176,651.56 = 11,081,443.16 : x
  2. Step 2: Convert to fraction form
    20,807,156.09/31,176,651.56 = 11,081,443.16/x
  3. Step 3: Cross multiply
    20,807,156.09x = 31,176,651.56 × 11,081,443.16
  4. Step 4: Simplify right side
    20,807,156.09x = 345,482,292,203,799.75
  5. Step 5: Solve for x
    x = 345,482,292,203,799.75/20,807,156.09
  6. Step 6: Final answer
    x = 16,604,013.09

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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.