Home / 28,309,135.43-42,463,813.85-8,613,458.34

Finding the Fourth Proportional to 28,309,135.43, 42,463,813.85 and 8,613,458.34

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Solution

The fourth proportional to 28,309,135.43, 42,463,813.85 and 8,613,458.34 is: 12,920,221.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,309,135.43 : 42,463,813.85 = 8,613,458.34 : x
  2. Step 2: Convert to fraction form
    28,309,135.43/42,463,813.85 = 8,613,458.34/x
  3. Step 3: Cross multiply
    28,309,135.43x = 42,463,813.85 × 8,613,458.34
  4. Step 4: Simplify right side
    28,309,135.43x = 365,760,291,511,422.69
  5. Step 5: Solve for x
    x = 365,760,291,511,422.69/28,309,135.43
  6. Step 6: Final answer
    x = 12,920,221.19

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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.