Home / 15,876,784.78-21,922,304.32-12,199,905.60

Finding the Fourth Proportional to 15,876,784.78, 21,922,304.32 and 12,199,905.60

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Solution

The fourth proportional to 15,876,784.78, 21,922,304.32 and 12,199,905.60 is: 16,845,352.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,876,784.78 : 21,922,304.32 = 12,199,905.60 : x
  2. Step 2: Convert to fraction form
    15,876,784.78/21,922,304.32 = 12,199,905.60/x
  3. Step 3: Cross multiply
    15,876,784.78x = 21,922,304.32 × 12,199,905.60
  4. Step 4: Simplify right side
    15,876,784.78x = 267,450,043,238,472.19
  5. Step 5: Solve for x
    x = 267,450,043,238,472.19/15,876,784.78
  6. Step 6: Final answer
    x = 16,845,352.94

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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.