Home / 21,760,420.42-30,028,431.54-11,970,243.64

Finding the Fourth Proportional to 21,760,420.42, 30,028,431.54 and 11,970,243.64

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Solution

The fourth proportional to 21,760,420.42, 30,028,431.54 and 11,970,243.64 is: 16,518,414.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,760,420.42 : 30,028,431.54 = 11,970,243.64 : x
  2. Step 2: Convert to fraction form
    21,760,420.42/30,028,431.54 = 11,970,243.64/x
  3. Step 3: Cross multiply
    21,760,420.42x = 30,028,431.54 × 11,970,243.64
  4. Step 4: Simplify right side
    21,760,420.42x = 359,447,641,660,860.44
  5. Step 5: Solve for x
    x = 359,447,641,660,860.44/21,760,420.42
  6. Step 6: Final answer
    x = 16,518,414.38

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1.5x scale

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.