Home / 28,311,512.21-42,453,850.73-9,861,022.41

Finding the Fourth Proportional to 28,311,512.21, 42,453,850.73 and 9,861,022.41

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Solution

The fourth proportional to 28,311,512.21, 42,453,850.73 and 9,861,022.41 is: 14,786,860.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,311,512.21 : 42,453,850.73 = 9,861,022.41 : x
  2. Step 2: Convert to fraction form
    28,311,512.21/42,453,850.73 = 9,861,022.41/x
  3. Step 3: Cross multiply
    28,311,512.21x = 42,453,850.73 × 9,861,022.41
  4. Step 4: Simplify right side
    28,311,512.21x = 418,638,373,390,019.75
  5. Step 5: Solve for x
    x = 418,638,373,390,019.75/28,311,512.21
  6. Step 6: Final answer
    x = 14,786,860.21

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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.