Home / 642,897,511.11-964,442,092.04-228,339,504.12

Finding the Fourth Proportional to 642,897,511.11, 964,442,092.04 and 228,339,504.12

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Solution

The fourth proportional to 642,897,511.11, 964,442,092.04 and 228,339,504.12 is: 342,543,290.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,897,511.11 : 964,442,092.04 = 228,339,504.12 : x
  2. Step 2: Convert to fraction form
    642,897,511.11/964,442,092.04 = 228,339,504.12/x
  3. Step 3: Cross multiply
    642,897,511.11x = 964,442,092.04 × 228,339,504.12
  4. Step 4: Simplify right side
    642,897,511.11x = 220,220,229,053,483,520
  5. Step 5: Solve for x
    x = 220,220,229,053,483,520/642,897,511.11
  6. Step 6: Final answer
    x = 342,543,290.72

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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.