Home / 311,899,138.65-467,848,707.98-81,891,473.85

Finding the Fourth Proportional to 311,899,138.65, 467,848,707.98 and 81,891,473.85

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Solution

The fourth proportional to 311,899,138.65, 467,848,707.98 and 81,891,473.85 is: 122,837,210.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,899,138.65 : 467,848,707.98 = 81,891,473.85 : x
  2. Step 2: Convert to fraction form
    311,899,138.65/467,848,707.98 = 81,891,473.85/x
  3. Step 3: Cross multiply
    311,899,138.65x = 467,848,707.98 × 81,891,473.85
  4. Step 4: Simplify right side
    311,899,138.65x = 38,312,820,234,891,000
  5. Step 5: Solve for x
    x = 38,312,820,234,891,000/311,899,138.65
  6. Step 6: Final answer
    x = 122,837,210.78

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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.