Home / 19,286,515.72-28,929,773.58-9,158,431.24

Finding the Fourth Proportional to 19,286,515.72, 28,929,773.58 and 9,158,431.24

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Solution

The fourth proportional to 19,286,515.72, 28,929,773.58 and 9,158,431.24 is: 13,737,646.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,286,515.72 : 28,929,773.58 = 9,158,431.24 : x
  2. Step 2: Convert to fraction form
    19,286,515.72/28,929,773.58 = 9,158,431.24/x
  3. Step 3: Cross multiply
    19,286,515.72x = 28,929,773.58 × 9,158,431.24
  4. Step 4: Simplify right side
    19,286,515.72x = 264,951,342,121,198.62
  5. Step 5: Solve for x
    x = 264,951,342,121,198.62/19,286,515.72
  6. Step 6: Final answer
    x = 13,737,646.86

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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.