Home / 21,190,404.60-31,785,606.90-19,755,513.90

Finding the Fourth Proportional to 21,190,404.60, 31,785,606.90 and 19,755,513.90

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Solution

The fourth proportional to 21,190,404.60, 31,785,606.90 and 19,755,513.90 is: 29,633,270.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,190,404.60 : 31,785,606.90 = 19,755,513.90 : x
  2. Step 2: Convert to fraction form
    21,190,404.60/31,785,606.90 = 19,755,513.90/x
  3. Step 3: Cross multiply
    21,190,404.60x = 31,785,606.90 × 19,755,513.90
  4. Step 4: Simplify right side
    21,190,404.60x = 627,940,998,932,885.88
  5. Step 5: Solve for x
    x = 627,940,998,932,885.88/21,190,404.60
  6. Step 6: Final answer
    x = 29,633,270.85

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1.5x scale

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.