Home / 12,821,498.21-17,693,665.44-7,020,279.02

Finding the Fourth Proportional to 12,821,498.21, 17,693,665.44 and 7,020,279.02

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Solution

The fourth proportional to 12,821,498.21, 17,693,665.44 and 7,020,279.02 is: 9,687,983.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,821,498.21 : 17,693,665.44 = 7,020,279.02 : x
  2. Step 2: Convert to fraction form
    12,821,498.21/17,693,665.44 = 7,020,279.02/x
  3. Step 3: Cross multiply
    12,821,498.21x = 17,693,665.44 × 7,020,279.02
  4. Step 4: Simplify right side
    12,821,498.21x = 124,214,468,275,331.06
  5. Step 5: Solve for x
    x = 124,214,468,275,331.06/12,821,498.21
  6. Step 6: Final answer
    x = 9,687,983.90

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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.