Home / 3,991,998.06-5,508,960.39-2,156,455.98

Finding the Fourth Proportional to 3,991,998.06, 5,508,960.39 and 2,156,455.98

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Solution

The fourth proportional to 3,991,998.06, 5,508,960.39 and 2,156,455.98 is: 2,975,910.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,991,998.06 : 5,508,960.39 = 2,156,455.98 : x
  2. Step 2: Convert to fraction form
    3,991,998.06/5,508,960.39 = 2,156,455.98/x
  3. Step 3: Cross multiply
    3,991,998.06x = 5,508,960.39 × 2,156,455.98
  4. Step 4: Simplify right side
    3,991,998.06x = 11,879,830,576,598.63
  5. Step 5: Solve for x
    x = 11,879,830,576,598.63/3,991,998.06
  6. Step 6: Final answer
    x = 2,975,910.91

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1.5x scale

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.