Home / 13,172,934-19,738,995.48-9,137,267.76

Finding the Fourth Proportional to 13,172,934, 19,738,995.48 and 9,137,267.76

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Solution

The fourth proportional to 13,172,934, 19,738,995.48 and 9,137,267.76 is: 13,691,747.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,172,934 : 19,738,995.48 = 9,137,267.76 : x
  2. Step 2: Convert to fraction form
    13,172,934/19,738,995.48 = 9,137,267.76/x
  3. Step 3: Cross multiply
    13,172,934x = 19,738,995.48 × 9,137,267.76
  4. Step 4: Simplify right side
    13,172,934x = 180,360,487,014,189.72
  5. Step 5: Solve for x
    x = 180,360,487,014,189.72/13,172,934
  6. Step 6: Final answer
    x = 13,691,747.56

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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.