Home / 381,678,069.82-571,987,428.18-173,908,719.73

Finding the Fourth Proportional to 381,678,069.82, 571,987,428.18 and 173,908,719.73

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Solution

The fourth proportional to 381,678,069.82, 571,987,428.18 and 173,908,719.73 is: 260,621,736.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,678,069.82 : 571,987,428.18 = 173,908,719.73 : x
  2. Step 2: Convert to fraction form
    381,678,069.82/571,987,428.18 = 173,908,719.73/x
  3. Step 3: Cross multiply
    381,678,069.82x = 571,987,428.18 × 173,908,719.73
  4. Step 4: Simplify right side
    381,678,069.82x = 99,473,601,336,439,104
  5. Step 5: Solve for x
    x = 99,473,601,336,439,104/381,678,069.82
  6. Step 6: Final answer
    x = 260,621,736.49

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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.