Home / 12,485,539.97-17,229,995.30-6,978,908.87

Finding the Fourth Proportional to 12,485,539.97, 17,229,995.30 and 6,978,908.87

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Solution

The fourth proportional to 12,485,539.97, 17,229,995.30 and 6,978,908.87 is: 9,630,866.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,485,539.97 : 17,229,995.30 = 6,978,908.87 : x
  2. Step 2: Convert to fraction form
    12,485,539.97/17,229,995.30 = 6,978,908.87/x
  3. Step 3: Cross multiply
    12,485,539.97x = 17,229,995.30 × 6,978,908.87
  4. Step 4: Simplify right side
    12,485,539.97x = 120,246,566,994,333.78
  5. Step 5: Solve for x
    x = 120,246,566,994,333.78/12,485,539.97
  6. Step 6: Final answer
    x = 9,630,866.37

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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.