Home / 13,188,320.70-19,782,481.05-9,787,098.30

Finding the Fourth Proportional to 13,188,320.70, 19,782,481.05 and 9,787,098.30

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Solution

The fourth proportional to 13,188,320.70, 19,782,481.05 and 9,787,098.30 is: 14,680,647.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,188,320.70 : 19,782,481.05 = 9,787,098.30 : x
  2. Step 2: Convert to fraction form
    13,188,320.70/19,782,481.05 = 9,787,098.30/x
  3. Step 3: Cross multiply
    13,188,320.70x = 19,782,481.05 × 9,787,098.30
  4. Step 4: Simplify right side
    13,188,320.70x = 193,613,086,654,237.25
  5. Step 5: Solve for x
    x = 193,613,086,654,237.25/13,188,320.70
  6. Step 6: Final answer
    x = 14,680,647.45

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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.