Home / 221,595,261.76-305,817,294.72-122,473,876.96

Finding the Fourth Proportional to 221,595,261.76, 305,817,294.72 and 122,473,876.96

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Solution

The fourth proportional to 221,595,261.76, 305,817,294.72 and 122,473,876.96 is: 169,022,701.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,595,261.76 : 305,817,294.72 = 122,473,876.96 : x
  2. Step 2: Convert to fraction form
    221,595,261.76/305,817,294.72 = 122,473,876.96/x
  3. Step 3: Cross multiply
    221,595,261.76x = 305,817,294.72 × 122,473,876.96
  4. Step 4: Simplify right side
    221,595,261.76x = 37,454,629,725,777,336
  5. Step 5: Solve for x
    x = 37,454,629,725,777,336/221,595,261.76
  6. Step 6: Final answer
    x = 169,022,701.25

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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.