Home / 13,590,728.97-18,755,208.55-7,479,157.47

Finding the Fourth Proportional to 13,590,728.97, 18,755,208.55 and 7,479,157.47

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Solution

The fourth proportional to 13,590,728.97, 18,755,208.55 and 7,479,157.47 is: 10,321,238.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,590,728.97 : 18,755,208.55 = 7,479,157.47 : x
  2. Step 2: Convert to fraction form
    13,590,728.97/18,755,208.55 = 7,479,157.47/x
  3. Step 3: Cross multiply
    13,590,728.97x = 18,755,208.55 × 7,479,157.47
  4. Step 4: Simplify right side
    13,590,728.97x = 140,273,158,128,140.38
  5. Step 5: Solve for x
    x = 140,273,158,128,140.38/13,590,728.97
  6. Step 6: Final answer
    x = 10,321,238.72

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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.