Home / 20,410,625.25-30,615,937.88-8,443,361.25

Finding the Fourth Proportional to 20,410,625.25, 30,615,937.88 and 8,443,361.25

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Solution

The fourth proportional to 20,410,625.25, 30,615,937.88 and 8,443,361.25 is: 12,665,041.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,410,625.25 : 30,615,937.88 = 8,443,361.25 : x
  2. Step 2: Convert to fraction form
    20,410,625.25/30,615,937.88 = 8,443,361.25/x
  3. Step 3: Cross multiply
    20,410,625.25x = 30,615,937.88 × 8,443,361.25
  4. Step 4: Simplify right side
    20,410,625.25x = 258,501,423,486,182.34
  5. Step 5: Solve for x
    x = 258,501,423,486,182.34/20,410,625.25
  6. Step 6: Final answer
    x = 12,665,041.88

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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.