Home / 397,816,122.17-548,913,371.15-221,599,732.25

Finding the Fourth Proportional to 397,816,122.17, 548,913,371.15 and 221,599,732.25

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Solution

The fourth proportional to 397,816,122.17, 548,913,371.15 and 221,599,732.25 is: 305,767,034.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,816,122.17 : 548,913,371.15 = 221,599,732.25 : x
  2. Step 2: Convert to fraction form
    397,816,122.17/548,913,371.15 = 221,599,732.25/x
  3. Step 3: Cross multiply
    397,816,122.17x = 548,913,371.15 × 221,599,732.25
  4. Step 4: Simplify right side
    397,816,122.17x = 121,639,056,074,176,864
  5. Step 5: Solve for x
    x = 121,639,056,074,176,864/397,816,122.17
  6. Step 6: Final answer
    x = 305,767,034.81

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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.