Home / 12,997,396.06-17,936,680.22-7,117,277.20

Finding the Fourth Proportional to 12,997,396.06, 17,936,680.22 and 7,117,277.20

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Solution

The fourth proportional to 12,997,396.06, 17,936,680.22 and 7,117,277.20 is: 9,821,992.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,997,396.06 : 17,936,680.22 = 7,117,277.20 : x
  2. Step 2: Convert to fraction form
    12,997,396.06/17,936,680.22 = 7,117,277.20/x
  3. Step 3: Cross multiply
    12,997,396.06x = 17,936,680.22 × 7,117,277.20
  4. Step 4: Simplify right side
    12,997,396.06x = 127,660,325,173,496.98
  5. Step 5: Solve for x
    x = 127,660,325,173,496.98/12,997,396.06
  6. Step 6: Final answer
    x = 9,821,992.39

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Double scale
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1.5x scale

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.