Home / 12,791,394.06-17,652,354.75-6,990,420.30

Finding the Fourth Proportional to 12,791,394.06, 17,652,354.75 and 6,990,420.30

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Solution

The fourth proportional to 12,791,394.06, 17,652,354.75 and 6,990,420.30 is: 9,646,906.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,791,394.06 : 17,652,354.75 = 6,990,420.30 : x
  2. Step 2: Convert to fraction form
    12,791,394.06/17,652,354.75 = 6,990,420.30/x
  3. Step 3: Cross multiply
    12,791,394.06x = 17,652,354.75 × 6,990,420.30
  4. Step 4: Simplify right side
    12,791,394.06x = 123,397,378,987,201.42
  5. Step 5: Solve for x
    x = 123,397,378,987,201.42/12,791,394.06
  6. Step 6: Final answer
    x = 9,646,906.23

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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.