Home / 20,231,999.20-30,285,013.20-19,602,143.20

Finding the Fourth Proportional to 20,231,999.20, 30,285,013.20 and 19,602,143.20

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Solution

The fourth proportional to 20,231,999.20, 30,285,013.20 and 19,602,143.20 is: 29,342,190.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,231,999.20 : 30,285,013.20 = 19,602,143.20 : x
  2. Step 2: Convert to fraction form
    20,231,999.20/30,285,013.20 = 19,602,143.20/x
  3. Step 3: Cross multiply
    20,231,999.20x = 30,285,013.20 × 19,602,143.20
  4. Step 4: Simplify right side
    20,231,999.20x = 593,651,165,560,290.25
  5. Step 5: Solve for x
    x = 593,651,165,560,290.25/20,231,999.20
  6. Step 6: Final answer
    x = 29,342,190.05

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1.5x scale

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.