Home / 21,583,720-29,785,172.34-11,793,938.38

Finding the Fourth Proportional to 21,583,720, 29,785,172.34 and 11,793,938.38

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Solution

The fourth proportional to 21,583,720, 29,785,172.34 and 11,793,938.38 is: 16,275,437.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,583,720 : 29,785,172.34 = 11,793,938.38 : x
  2. Step 2: Convert to fraction form
    21,583,720/29,785,172.34 = 11,793,938.38/x
  3. Step 3: Cross multiply
    21,583,720x = 29,785,172.34 × 11,793,938.38
  4. Step 4: Simplify right side
    21,583,720x = 351,284,487,215,640.44
  5. Step 5: Solve for x
    x = 351,284,487,215,640.44/21,583,720
  6. Step 6: Final answer
    x = 16,275,437.56

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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.