Home / 820,222,434.72-1,230,336,844-198,436,668.92

Finding the Fourth Proportional to 820,222,434.72, 1,230,336,844 and 198,436,668.92

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Solution

The fourth proportional to 820,222,434.72, 1,230,336,844 and 198,436,668.92 is: 297,655,775.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,222,434.72 : 1,230,336,844 = 198,436,668.92 : x
  2. Step 2: Convert to fraction form
    820,222,434.72/1,230,336,844 = 198,436,668.92/x
  3. Step 3: Cross multiply
    820,222,434.72x = 1,230,336,844 × 198,436,668.92
  4. Step 4: Simplify right side
    820,222,434.72x = 244,143,944,972,905,664
  5. Step 5: Solve for x
    x = 244,143,944,972,905,664/820,222,434.72
  6. Step 6: Final answer
    x = 297,655,775.60

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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.