Home / 13,320,587.03-18,381,891.25-8,361,695.75

Finding the Fourth Proportional to 13,320,587.03, 18,381,891.25 and 8,361,695.75

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Solution

The fourth proportional to 13,320,587.03, 18,381,891.25 and 8,361,695.75 is: 11,538,814.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,320,587.03 : 18,381,891.25 = 8,361,695.75 : x
  2. Step 2: Convert to fraction form
    13,320,587.03/18,381,891.25 = 8,361,695.75/x
  3. Step 3: Cross multiply
    13,320,587.03x = 18,381,891.25 × 8,361,695.75
  4. Step 4: Simplify right side
    13,320,587.03x = 153,703,781,967,137.69
  5. Step 5: Solve for x
    x = 153,703,781,967,137.69/13,320,587.03
  6. Step 6: Final answer
    x = 11,538,814.44

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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.