Home / 399,210,513.39-550,910,475.84-222,998,507.15

Finding the Fourth Proportional to 399,210,513.39, 550,910,475.84 and 222,998,507.15

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Solution

The fourth proportional to 399,210,513.39, 550,910,475.84 and 222,998,507.15 is: 307,737,921.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,210,513.39 : 550,910,475.84 = 222,998,507.15 : x
  2. Step 2: Convert to fraction form
    399,210,513.39/550,910,475.84 = 222,998,507.15/x
  3. Step 3: Cross multiply
    399,210,513.39x = 550,910,475.84 × 222,998,507.15
  4. Step 4: Simplify right side
    399,210,513.39x = 122,852,213,687,414,624
  5. Step 5: Solve for x
    x = 122,852,213,687,414,624/399,210,513.39
  6. Step 6: Final answer
    x = 307,737,921.64

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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.