Home / 13,631,291.12-18,810,879-7,519,718

Finding the Fourth Proportional to 13,631,291.12, 18,810,879 and 7,519,718

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Solution

The fourth proportional to 13,631,291.12, 18,810,879 and 7,519,718 is: 10,377,043.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,631,291.12 : 18,810,879 = 7,519,718 : x
  2. Step 2: Convert to fraction form
    13,631,291.12/18,810,879 = 7,519,718/x
  3. Step 3: Cross multiply
    13,631,291.12x = 18,810,879 × 7,519,718
  4. Step 4: Simplify right side
    13,631,291.12x = 141,452,505,412,122
  5. Step 5: Solve for x
    x = 141,452,505,412,122/13,631,291.12
  6. Step 6: Final answer
    x = 10,377,043.83

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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.