Home / 12,997,398.06-17,936,682.98-7,117,279.20

Finding the Fourth Proportional to 12,997,398.06, 17,936,682.98 and 7,117,279.20

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Solution

The fourth proportional to 12,997,398.06, 17,936,682.98 and 7,117,279.20 is: 9,821,995.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,997,398.06 : 17,936,682.98 = 7,117,279.20 : x
  2. Step 2: Convert to fraction form
    12,997,398.06/17,936,682.98 = 7,117,279.20/x
  3. Step 3: Cross multiply
    12,997,398.06x = 17,936,682.98 × 7,117,279.20
  4. Step 4: Simplify right side
    12,997,398.06x = 127,660,380,690,548.02
  5. Step 5: Solve for x
    x = 127,660,380,690,548.02/12,997,398.06
  6. Step 6: Final answer
    x = 9,821,995.15

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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.