Home / 399,322,887.68-551,094,100.90-220,702,933.46

Finding the Fourth Proportional to 399,322,887.68, 551,094,100.90 and 220,702,933.46

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Solution

The fourth proportional to 399,322,887.68, 551,094,100.90 and 220,702,933.46 is: 304,585,808.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,322,887.68 : 551,094,100.90 = 220,702,933.46 : x
  2. Step 2: Convert to fraction form
    399,322,887.68/551,094,100.90 = 220,702,933.46/x
  3. Step 3: Cross multiply
    399,322,887.68x = 551,094,100.90 × 220,702,933.46
  4. Step 4: Simplify right side
    399,322,887.68x = 121,628,084,681,131,232
  5. Step 5: Solve for x
    x = 121,628,084,681,131,232/399,322,887.68
  6. Step 6: Final answer
    x = 304,585,808.71

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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.