Home / 20,722,092.40-31,083,138.60-19,394,988.40

Finding the Fourth Proportional to 20,722,092.40, 31,083,138.60 and 19,394,988.40

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Solution

The fourth proportional to 20,722,092.40, 31,083,138.60 and 19,394,988.40 is: 29,092,482.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,722,092.40 : 31,083,138.60 = 19,394,988.40 : x
  2. Step 2: Convert to fraction form
    20,722,092.40/31,083,138.60 = 19,394,988.40/x
  3. Step 3: Cross multiply
    20,722,092.40x = 31,083,138.60 × 19,394,988.40
  4. Step 4: Simplify right side
    20,722,092.40x = 602,857,112,582,592.25
  5. Step 5: Solve for x
    x = 602,857,112,582,592.25/20,722,092.40
  6. Step 6: Final answer
    x = 29,092,482.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.