Home / 19,920,664.31-27,489,790.97-11,099,659.82

Finding the Fourth Proportional to 19,920,664.31, 27,489,790.97 and 11,099,659.82

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Solution

The fourth proportional to 19,920,664.31, 27,489,790.97 and 11,099,659.82 is: 15,317,126.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,920,664.31 : 27,489,790.97 = 11,099,659.82 : x
  2. Step 2: Convert to fraction form
    19,920,664.31/27,489,790.97 = 11,099,659.82/x
  3. Step 3: Cross multiply
    19,920,664.31x = 27,489,790.97 × 11,099,659.82
  4. Step 4: Simplify right side
    19,920,664.31x = 305,127,328,355,649.94
  5. Step 5: Solve for x
    x = 305,127,328,355,649.94/19,920,664.31
  6. Step 6: Final answer
    x = 15,317,126.16

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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.