Home / 856,476,179.89-1,284,465,036.83-331,728,243.59

Finding the Fourth Proportional to 856,476,179.89, 1,284,465,036.83 and 331,728,243.59

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Solution

The fourth proportional to 856,476,179.89, 1,284,465,036.83 and 331,728,243.59 is: 497,495,833.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,476,179.89 : 1,284,465,036.83 = 331,728,243.59 : x
  2. Step 2: Convert to fraction form
    856,476,179.89/1,284,465,036.83 = 331,728,243.59/x
  3. Step 3: Cross multiply
    856,476,179.89x = 1,284,465,036.83 × 331,728,243.59
  4. Step 4: Simplify right side
    856,476,179.89x = 426,093,330,624,420,992
  5. Step 5: Solve for x
    x = 426,093,330,624,420,992/856,476,179.89
  6. Step 6: Final answer
    x = 497,495,833.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.