Home / 21,583,721-29,785,173.72-11,793,939.38

Finding the Fourth Proportional to 21,583,721, 29,785,173.72 and 11,793,939.38

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Solution

The fourth proportional to 21,583,721, 29,785,173.72 and 11,793,939.38 is: 16,275,438.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,583,721 : 29,785,173.72 = 11,793,939.38 : x
  2. Step 2: Convert to fraction form
    21,583,721/29,785,173.72 = 11,793,939.38/x
  3. Step 3: Cross multiply
    21,583,721x = 29,785,173.72 × 11,793,939.38
  4. Step 4: Simplify right side
    21,583,721x = 351,284,533,276,449.12
  5. Step 5: Solve for x
    x = 351,284,533,276,449.12/21,583,721
  6. Step 6: Final answer
    x = 16,275,438.94

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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.