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Finding the Fourth Proportional to 15,751,518, 21,737,103.48 and 8,508,174

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Solution

The fourth proportional to 15,751,518, 21,737,103.48 and 8,508,174 is: 11,741,284.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,751,518 : 21,737,103.48 = 8,508,174 : x
  2. Step 2: Convert to fraction form
    15,751,518/21,737,103.48 = 8,508,174/x
  3. Step 3: Cross multiply
    15,751,518x = 21,737,103.48 × 8,508,174
  4. Step 4: Simplify right side
    15,751,518x = 184,943,058,663,845.53
  5. Step 5: Solve for x
    x = 184,943,058,663,845.53/15,751,518
  6. Step 6: Final answer
    x = 11,741,284.79

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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.