Home / 276,715,778.43-381,870,315.14-157,636,605.84

Finding the Fourth Proportional to 276,715,778.43, 381,870,315.14 and 157,636,605.84

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Solution

The fourth proportional to 276,715,778.43, 381,870,315.14 and 157,636,605.84 is: 217,539,963.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,715,778.43 : 381,870,315.14 = 157,636,605.84 : x
  2. Step 2: Convert to fraction form
    276,715,778.43/381,870,315.14 = 157,636,605.84/x
  3. Step 3: Cross multiply
    276,715,778.43x = 381,870,315.14 × 157,636,605.84
  4. Step 4: Simplify right side
    276,715,778.43x = 60,196,740,349,720,760
  5. Step 5: Solve for x
    x = 60,196,740,349,720,760/276,715,778.43
  6. Step 6: Final answer
    x = 217,539,963.54

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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.