Home / 171,072,012.80-256,608,019.20-84,823,731.20

Finding the Fourth Proportional to 171,072,012.80, 256,608,019.20 and 84,823,731.20

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Solution

The fourth proportional to 171,072,012.80, 256,608,019.20 and 84,823,731.20 is: 127,235,596.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,072,012.80 : 256,608,019.20 = 84,823,731.20 : x
  2. Step 2: Convert to fraction form
    171,072,012.80/256,608,019.20 = 84,823,731.20/x
  3. Step 3: Cross multiply
    171,072,012.80x = 256,608,019.20 × 84,823,731.20
  4. Step 4: Simplify right side
    171,072,012.80x = 21,766,449,644,385,240
  5. Step 5: Solve for x
    x = 21,766,449,644,385,240/171,072,012.80
  6. Step 6: Final answer
    x = 127,235,596.80

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1.5x scale

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.