Home / 401,421,239.15-553,916,380.18-222,812,656.58

Finding the Fourth Proportional to 401,421,239.15, 553,916,380.18 and 222,812,656.58

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Solution

The fourth proportional to 401,421,239.15, 553,916,380.18 and 222,812,656.58 is: 307,456,527.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,421,239.15 : 553,916,380.18 = 222,812,656.58 : x
  2. Step 2: Convert to fraction form
    401,421,239.15/553,916,380.18 = 222,812,656.58/x
  3. Step 3: Cross multiply
    401,421,239.15x = 553,916,380.18 × 222,812,656.58
  4. Step 4: Simplify right side
    401,421,239.15x = 123,419,580,188,313,456
  5. Step 5: Solve for x
    x = 123,419,580,188,313,456/401,421,239.15
  6. Step 6: Final answer
    x = 307,456,527.34

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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.