Home / 31,631,213.80-47,446,820.70-18,866,132.20

Finding the Fourth Proportional to 31,631,213.80, 47,446,820.70 and 18,866,132.20

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Solution

The fourth proportional to 31,631,213.80, 47,446,820.70 and 18,866,132.20 is: 28,299,198.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,631,213.80 : 47,446,820.70 = 18,866,132.20 : x
  2. Step 2: Convert to fraction form
    31,631,213.80/47,446,820.70 = 18,866,132.20/x
  3. Step 3: Cross multiply
    31,631,213.80x = 47,446,820.70 × 18,866,132.20
  4. Step 4: Simplify right side
    31,631,213.80x = 895,137,991,795,896.50
  5. Step 5: Solve for x
    x = 895,137,991,795,896.50/31,631,213.80
  6. Step 6: Final answer
    x = 28,299,198.30

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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.