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Finding the Fourth Proportional to 172,775,258.80, 259,162,888.20 and 161,437,850.80

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Solution

The fourth proportional to 172,775,258.80, 259,162,888.20 and 161,437,850.80 is: 242,156,776.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,775,258.80 : 259,162,888.20 = 161,437,850.80 : x
  2. Step 2: Convert to fraction form
    172,775,258.80/259,162,888.20 = 161,437,850.80/x
  3. Step 3: Cross multiply
    172,775,258.80x = 259,162,888.20 × 161,437,850.80
  4. Step 4: Simplify right side
    172,775,258.80x = 41,838,699,678,128,680
  5. Step 5: Solve for x
    x = 41,838,699,678,128,680/172,775,258.80
  6. Step 6: Final answer
    x = 242,156,776.20

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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.