Home / 221,595,218.82-305,817,234.75-122,473,832.40

Finding the Fourth Proportional to 221,595,218.82, 305,817,234.75 and 122,473,832.40

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Solution

The fourth proportional to 221,595,218.82, 305,817,234.75 and 122,473,832.40 is: 169,022,639.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,595,218.82 : 305,817,234.75 = 122,473,832.40 : x
  2. Step 2: Convert to fraction form
    221,595,218.82/305,817,234.75 = 122,473,832.40/x
  3. Step 3: Cross multiply
    221,595,218.82x = 305,817,234.75 × 122,473,832.40
  4. Step 4: Simplify right side
    221,595,218.82x = 37,454,608,753,802,960
  5. Step 5: Solve for x
    x = 37,454,608,753,802,960/221,595,218.82
  6. Step 6: Final answer
    x = 169,022,639.36

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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.