Home / 20,991,922.20-31,487,883.30-10,375,090.20

Finding the Fourth Proportional to 20,991,922.20, 31,487,883.30 and 10,375,090.20

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Solution

The fourth proportional to 20,991,922.20, 31,487,883.30 and 10,375,090.20 is: 15,562,635.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,991,922.20 : 31,487,883.30 = 10,375,090.20 : x
  2. Step 2: Convert to fraction form
    20,991,922.20/31,487,883.30 = 10,375,090.20/x
  3. Step 3: Cross multiply
    20,991,922.20x = 31,487,883.30 × 10,375,090.20
  4. Step 4: Simplify right side
    20,991,922.20x = 326,689,629,444,573.62
  5. Step 5: Solve for x
    x = 326,689,629,444,573.62/20,991,922.20
  6. Step 6: Final answer
    x = 15,562,635.30

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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.