Home / 12,788,473.36-17,647,884.48-6,987,130.24

Finding the Fourth Proportional to 12,788,473.36, 17,647,884.48 and 6,987,130.24

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Solution

The fourth proportional to 12,788,473.36, 17,647,884.48 and 6,987,130.24 is: 9,642,125.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,788,473.36 : 17,647,884.48 = 6,987,130.24 : x
  2. Step 2: Convert to fraction form
    12,788,473.36/17,647,884.48 = 6,987,130.24/x
  3. Step 3: Cross multiply
    12,788,473.36x = 17,647,884.48 × 6,987,130.24
  4. Step 4: Simplify right side
    12,788,473.36x = 123,308,067,322,234.69
  5. Step 5: Solve for x
    x = 123,308,067,322,234.69/12,788,473.36
  6. Step 6: Final answer
    x = 9,642,125.67

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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.