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Finding the Fourth Proportional to 172,775,259.80, 259,162,889.70 and 161,437,851.80

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Solution

The fourth proportional to 172,775,259.80, 259,162,889.70 and 161,437,851.80 is: 242,156,777.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,775,259.80 : 259,162,889.70 = 161,437,851.80 : x
  2. Step 2: Convert to fraction form
    172,775,259.80/259,162,889.70 = 161,437,851.80/x
  3. Step 3: Cross multiply
    172,775,259.80x = 259,162,889.70 × 161,437,851.80
  4. Step 4: Simplify right side
    172,775,259.80x = 41,838,700,179,448,344
  5. Step 5: Solve for x
    x = 41,838,700,179,448,344/172,775,259.80
  6. Step 6: Final answer
    x = 242,156,777.70

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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.