Home / 400,207,781.88-551,848,170.78-260,719,872.12

Finding the Fourth Proportional to 400,207,781.88, 551,848,170.78 and 260,719,872.12

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Solution

The fourth proportional to 400,207,781.88, 551,848,170.78 and 260,719,872.12 is: 359,507,713.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,207,781.88 : 551,848,170.78 = 260,719,872.12 : x
  2. Step 2: Convert to fraction form
    400,207,781.88/551,848,170.78 = 260,719,872.12/x
  3. Step 3: Cross multiply
    400,207,781.88x = 551,848,170.78 × 260,719,872.12
  4. Step 4: Simplify right side
    400,207,781.88x = 143,877,784,515,417,520
  5. Step 5: Solve for x
    x = 143,877,784,515,417,520/400,207,781.88
  6. Step 6: Final answer
    x = 359,507,713.32

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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.