Home / 21,751,453.74-30,016,407.51-11,961,897.90

Finding the Fourth Proportional to 21,751,453.74, 30,016,407.51 and 11,961,897.90

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Solution

The fourth proportional to 21,751,453.74, 30,016,407.51 and 11,961,897.90 is: 16,507,089.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,751,453.74 : 30,016,407.51 = 11,961,897.90 : x
  2. Step 2: Convert to fraction form
    21,751,453.74/30,016,407.51 = 11,961,897.90/x
  3. Step 3: Cross multiply
    21,751,453.74x = 30,016,407.51 × 11,961,897.90
  4. Step 4: Simplify right side
    21,751,453.74x = 359,053,201,959,413.25
  5. Step 5: Solve for x
    x = 359,053,201,959,413.25/21,751,453.74
  6. Step 6: Final answer
    x = 16,507,089.88

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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.