Home / 618,229,122.92-853,176,650.10-339,780,516.20

Finding the Fourth Proportional to 618,229,122.92, 853,176,650.10 and 339,780,516.20

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Solution

The fourth proportional to 618,229,122.92, 853,176,650.10 and 339,780,516.20 is: 468,908,357.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,229,122.92 : 853,176,650.10 = 339,780,516.20 : x
  2. Step 2: Convert to fraction form
    618,229,122.92/853,176,650.10 = 339,780,516.20/x
  3. Step 3: Cross multiply
    618,229,122.92x = 853,176,650.10 × 339,780,516.20
  4. Step 4: Simplify right side
    618,229,122.92x = 289,892,802,580,764,800
  5. Step 5: Solve for x
    x = 289,892,802,580,764,800/618,229,122.92
  6. Step 6: Final answer
    x = 468,908,357.49

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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.