Home / 306,019,205.69-422,147,400.50-194,318,935.61

Finding the Fourth Proportional to 306,019,205.69, 422,147,400.50 and 194,318,935.61

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Solution

The fourth proportional to 306,019,205.69, 422,147,400.50 and 194,318,935.61 is: 268,059,102.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,019,205.69 : 422,147,400.50 = 194,318,935.61 : x
  2. Step 2: Convert to fraction form
    306,019,205.69/422,147,400.50 = 194,318,935.61/x
  3. Step 3: Cross multiply
    306,019,205.69x = 422,147,400.50 × 194,318,935.61
  4. Step 4: Simplify right side
    306,019,205.69x = 82,031,233,532,606,048
  5. Step 5: Solve for x
    x = 82,031,233,532,606,048/306,019,205.69
  6. Step 6: Final answer
    x = 268,059,102.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.