Home / 31,519,027.62-43,503,021-19,909,206.90

Finding the Fourth Proportional to 31,519,027.62, 43,503,021 and 19,909,206.90

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Solution

The fourth proportional to 31,519,027.62, 43,503,021 and 19,909,206.90 is: 27,478,977.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,519,027.62 : 43,503,021 = 19,909,206.90 : x
  2. Step 2: Convert to fraction form
    31,519,027.62/43,503,021 = 19,909,206.90/x
  3. Step 3: Cross multiply
    31,519,027.62x = 43,503,021 × 19,909,206.90
  4. Step 4: Simplify right side
    31,519,027.62x = 866,110,645,864,044.88
  5. Step 5: Solve for x
    x = 866,110,645,864,044.88/31,519,027.62
  6. Step 6: Final answer
    x = 27,478,977.34

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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.