Home / 13,515,391.53-18,651,091.78-7,320,284.25

Finding the Fourth Proportional to 13,515,391.53, 18,651,091.78 and 7,320,284.25

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Solution

The fourth proportional to 13,515,391.53, 18,651,091.78 and 7,320,284.25 is: 10,101,911.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,515,391.53 : 18,651,091.78 = 7,320,284.25 : x
  2. Step 2: Convert to fraction form
    13,515,391.53/18,651,091.78 = 7,320,284.25/x
  3. Step 3: Cross multiply
    13,515,391.53x = 18,651,091.78 × 7,320,284.25
  4. Step 4: Simplify right side
    13,515,391.53x = 136,531,293,402,438.47
  5. Step 5: Solve for x
    x = 136,531,293,402,438.47/13,515,391.53
  6. Step 6: Final answer
    x = 10,101,911.82

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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.