Home / 171,921,763.20-257,882,644.80-161,835,772.80

Finding the Fourth Proportional to 171,921,763.20, 257,882,644.80 and 161,835,772.80

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Solution

The fourth proportional to 171,921,763.20, 257,882,644.80 and 161,835,772.80 is: 242,753,659.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,921,763.20 : 257,882,644.80 = 161,835,772.80 : x
  2. Step 2: Convert to fraction form
    171,921,763.20/257,882,644.80 = 161,835,772.80/x
  3. Step 3: Cross multiply
    171,921,763.20x = 257,882,644.80 × 161,835,772.80
  4. Step 4: Simplify right side
    171,921,763.20x = 41,734,637,112,915,904
  5. Step 5: Solve for x
    x = 41,734,637,112,915,904/171,921,763.20
  6. Step 6: Final answer
    x = 242,753,659.20

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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.