Home / 15,305,017.33-21,120,923.92-8,429,499.39

Finding the Fourth Proportional to 15,305,017.33, 21,120,923.92 and 8,429,499.39

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Solution

The fourth proportional to 15,305,017.33, 21,120,923.92 and 8,429,499.39 is: 11,632,709.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,305,017.33 : 21,120,923.92 = 8,429,499.39 : x
  2. Step 2: Convert to fraction form
    15,305,017.33/21,120,923.92 = 8,429,499.39/x
  3. Step 3: Cross multiply
    15,305,017.33x = 21,120,923.92 × 8,429,499.39
  4. Step 4: Simplify right side
    15,305,017.33x = 178,038,815,299,876.44
  5. Step 5: Solve for x
    x = 178,038,815,299,876.44/15,305,017.33
  6. Step 6: Final answer
    x = 11,632,709.16

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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.