Home / 642,897,479.70-964,442,045.01-228,339,472.71

Finding the Fourth Proportional to 642,897,479.70, 964,442,045.01 and 228,339,472.71

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Solution

The fourth proportional to 642,897,479.70, 964,442,045.01 and 228,339,472.71 is: 342,543,243.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,897,479.70 : 964,442,045.01 = 228,339,472.71 : x
  2. Step 2: Convert to fraction form
    642,897,479.70/964,442,045.01 = 228,339,472.71/x
  3. Step 3: Cross multiply
    642,897,479.70x = 964,442,045.01 × 228,339,472.71
  4. Step 4: Simplify right side
    642,897,479.70x = 220,220,188,016,937,504
  5. Step 5: Solve for x
    x = 220,220,188,016,937,504/642,897,479.70
  6. Step 6: Final answer
    x = 342,543,243.63

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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.