Home / 21,137,425.25-29,170,364.90-20,168,874.02

Finding the Fourth Proportional to 21,137,425.25, 29,170,364.90 and 20,168,874.02

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Solution

The fourth proportional to 21,137,425.25, 29,170,364.90 and 20,168,874.02 is: 27,833,731.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,137,425.25 : 29,170,364.90 = 20,168,874.02 : x
  2. Step 2: Convert to fraction form
    21,137,425.25/29,170,364.90 = 20,168,874.02/x
  3. Step 3: Cross multiply
    21,137,425.25x = 29,170,364.90 × 20,168,874.02
  4. Step 4: Simplify right side
    21,137,425.25x = 588,333,414,757,611.50
  5. Step 5: Solve for x
    x = 588,333,414,757,611.50/21,137,425.25
  6. Step 6: Final answer
    x = 27,833,731.31

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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.