Home / 20,172,279.60-30,247,907.22-7,213,434.66

Finding the Fourth Proportional to 20,172,279.60, 30,247,907.22 and 7,213,434.66

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Solution

The fourth proportional to 20,172,279.60, 30,247,907.22 and 7,213,434.66 is: 10,816,392.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,172,279.60 : 30,247,907.22 = 7,213,434.66 : x
  2. Step 2: Convert to fraction form
    20,172,279.60/30,247,907.22 = 7,213,434.66/x
  3. Step 3: Cross multiply
    20,172,279.60x = 30,247,907.22 × 7,213,434.66
  4. Step 4: Simplify right side
    20,172,279.60x = 218,191,302,333,212.25
  5. Step 5: Solve for x
    x = 218,191,302,333,212.25/20,172,279.60
  6. Step 6: Final answer
    x = 10,816,392.92

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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.