Home / 15,306,067.38-21,122,372.25-8,430,549.24

Finding the Fourth Proportional to 15,306,067.38, 21,122,372.25 and 8,430,549.24

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Solution

The fourth proportional to 15,306,067.38, 21,122,372.25 and 8,430,549.24 is: 11,634,157.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,306,067.38 : 21,122,372.25 = 8,430,549.24 : x
  2. Step 2: Convert to fraction form
    15,306,067.38/21,122,372.25 = 8,430,549.24/x
  3. Step 3: Cross multiply
    15,306,067.38x = 21,122,372.25 × 8,430,549.24
  4. Step 4: Simplify right side
    15,306,067.38x = 178,073,199,319,234.59
  5. Step 5: Solve for x
    x = 178,073,199,319,234.59/15,306,067.38
  6. Step 6: Final answer
    x = 11,634,157.55

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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.