Home / 629,951,929.52-869,336,066.04-351,505,189.04

Finding the Fourth Proportional to 629,951,929.52, 869,336,066.04 and 351,505,189.04

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Solution

The fourth proportional to 629,951,929.52, 869,336,066.04 and 351,505,189.04 is: 485,078,501.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,951,929.52 : 869,336,066.04 = 351,505,189.04 : x
  2. Step 2: Convert to fraction form
    629,951,929.52/869,336,066.04 = 351,505,189.04/x
  3. Step 3: Cross multiply
    629,951,929.52x = 869,336,066.04 × 351,505,189.04
  4. Step 4: Simplify right side
    629,951,929.52x = 305,576,138,232,680,128
  5. Step 5: Solve for x
    x = 305,576,138,232,680,128/629,951,929.52
  6. Step 6: Final answer
    x = 485,078,501.89

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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.