Home / 28,690,117.82-43,034,962.20-8,219,854.72

Finding the Fourth Proportional to 28,690,117.82, 43,034,962.20 and 8,219,854.72

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Solution

The fourth proportional to 28,690,117.82, 43,034,962.20 and 8,219,854.72 is: 12,329,720.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,690,117.82 : 43,034,962.20 = 8,219,854.72 : x
  2. Step 2: Convert to fraction form
    28,690,117.82/43,034,962.20 = 8,219,854.72/x
  3. Step 3: Cross multiply
    28,690,117.82x = 43,034,962.20 × 8,219,854.72
  4. Step 4: Simplify right side
    28,690,117.82x = 353,741,137,164,691.62
  5. Step 5: Solve for x
    x = 353,741,137,164,691.62/28,690,117.82
  6. Step 6: Final answer
    x = 12,329,720.62

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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.