Home / 20,142,111.21-30,219,062.48-6,494,983.12

Finding the Fourth Proportional to 20,142,111.21, 30,219,062.48 and 6,494,983.12

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Solution

The fourth proportional to 20,142,111.21, 30,219,062.48 and 6,494,983.12 is: 9,744,375.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,142,111.21 : 30,219,062.48 = 6,494,983.12 : x
  2. Step 2: Convert to fraction form
    20,142,111.21/30,219,062.48 = 6,494,983.12/x
  3. Step 3: Cross multiply
    20,142,111.21x = 30,219,062.48 × 6,494,983.12
  4. Step 4: Simplify right side
    20,142,111.21x = 196,272,300,709,825.34
  5. Step 5: Solve for x
    x = 196,272,300,709,825.34/20,142,111.21
  6. Step 6: Final answer
    x = 9,744,375.78

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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.