Home / 422,146,669.46-633,216,815.84-127,040,518.80

Finding the Fourth Proportional to 422,146,669.46, 633,216,815.84 and 127,040,518.80

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Solution

The fourth proportional to 422,146,669.46, 633,216,815.84 and 127,040,518.80 is: 190,559,818.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,146,669.46 : 633,216,815.84 = 127,040,518.80 : x
  2. Step 2: Convert to fraction form
    422,146,669.46/633,216,815.84 = 127,040,518.80/x
  3. Step 3: Cross multiply
    422,146,669.46x = 633,216,815.84 × 127,040,518.80
  4. Step 4: Simplify right side
    422,146,669.46x = 80,444,192,797,515,248
  5. Step 5: Solve for x
    x = 80,444,192,797,515,248/422,146,669.46
  6. Step 6: Final answer
    x = 190,559,818.70

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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.