Home / 21,320,778.64-29,422,674.22-11,531,223.68

Finding the Fourth Proportional to 21,320,778.64, 29,422,674.22 and 11,531,223.68

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Solution

The fourth proportional to 21,320,778.64, 29,422,674.22 and 11,531,223.68 is: 15,913,088.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,320,778.64 : 29,422,674.22 = 11,531,223.68 : x
  2. Step 2: Convert to fraction form
    21,320,778.64/29,422,674.22 = 11,531,223.68/x
  3. Step 3: Cross multiply
    21,320,778.64x = 29,422,674.22 × 11,531,223.68
  4. Step 4: Simplify right side
    21,320,778.64x = 339,279,437,694,589.50
  5. Step 5: Solve for x
    x = 339,279,437,694,589.50/21,320,778.64
  6. Step 6: Final answer
    x = 15,913,088.51

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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.