Home / 171,072,137.80-256,608,206.70-43,421,321.80

Finding the Fourth Proportional to 171,072,137.80, 256,608,206.70 and 43,421,321.80

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Solution

The fourth proportional to 171,072,137.80, 256,608,206.70 and 43,421,321.80 is: 65,131,982.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,072,137.80 : 256,608,206.70 = 43,421,321.80 : x
  2. Step 2: Convert to fraction form
    171,072,137.80/256,608,206.70 = 43,421,321.80/x
  3. Step 3: Cross multiply
    171,072,137.80x = 256,608,206.70 × 43,421,321.80
  4. Step 4: Simplify right side
    171,072,137.80x = 11,142,267,519,641,614
  5. Step 5: Solve for x
    x = 11,142,267,519,641,614/171,072,137.80
  6. Step 6: Final answer
    x = 65,131,982.70

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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.