Home / 20,157,450.21-30,236,286.02-5,011,381.71

Finding the Fourth Proportional to 20,157,450.21, 30,236,286.02 and 5,011,381.71

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Solution

The fourth proportional to 20,157,450.21, 30,236,286.02 and 5,011,381.71 is: 7,517,100.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,157,450.21 : 30,236,286.02 = 5,011,381.71 : x
  2. Step 2: Convert to fraction form
    20,157,450.21/30,236,286.02 = 5,011,381.71/x
  3. Step 3: Cross multiply
    20,157,450.21x = 30,236,286.02 × 5,011,381.71
  4. Step 4: Simplify right side
    20,157,450.21x = 151,525,570,713,899.78
  5. Step 5: Solve for x
    x = 151,525,570,713,899.78/20,157,450.21
  6. Step 6: Final answer
    x = 7,517,100.09

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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.