Home / 20,072,360.80-27,699,710.16-10,905,078.88

Finding the Fourth Proportional to 20,072,360.80, 27,699,710.16 and 10,905,078.88

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Solution

The fourth proportional to 20,072,360.80, 27,699,710.16 and 10,905,078.88 is: 15,048,928.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,072,360.80 : 27,699,710.16 = 10,905,078.88 : x
  2. Step 2: Convert to fraction form
    20,072,360.80/27,699,710.16 = 10,905,078.88/x
  3. Step 3: Cross multiply
    20,072,360.80x = 27,699,710.16 × 10,905,078.88
  4. Step 4: Simplify right side
    20,072,360.80x = 302,067,524,247,937.44
  5. Step 5: Solve for x
    x = 302,067,524,247,937.44/20,072,360.80
  6. Step 6: Final answer
    x = 15,048,928.59

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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.