Home / 20,997,378.04-31,489,258.65-8,042,839.37

Finding the Fourth Proportional to 20,997,378.04, 31,489,258.65 and 8,042,839.37

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Solution

The fourth proportional to 20,997,378.04, 31,489,258.65 and 8,042,839.37 is: 12,061,651.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,997,378.04 : 31,489,258.65 = 8,042,839.37 : x
  2. Step 2: Convert to fraction form
    20,997,378.04/31,489,258.65 = 8,042,839.37/x
  3. Step 3: Cross multiply
    20,997,378.04x = 31,489,258.65 × 8,042,839.37
  4. Step 4: Simplify right side
    20,997,378.04x = 253,263,049,202,333.03
  5. Step 5: Solve for x
    x = 253,263,049,202,333.03/20,997,378.04
  6. Step 6: Final answer
    x = 12,061,651.16

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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.