Home / 20,806,160.90-31,221,570.69-11,591,845.85

Finding the Fourth Proportional to 20,806,160.90, 31,221,570.69 and 11,591,845.85

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Solution

The fourth proportional to 20,806,160.90, 31,221,570.69 and 11,591,845.85 is: 17,394,637.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,806,160.90 : 31,221,570.69 = 11,591,845.85 : x
  2. Step 2: Convert to fraction form
    20,806,160.90/31,221,570.69 = 11,591,845.85/x
  3. Step 3: Cross multiply
    20,806,160.90x = 31,221,570.69 × 11,591,845.85
  4. Step 4: Simplify right side
    20,806,160.90x = 361,915,634,711,412.06
  5. Step 5: Solve for x
    x = 361,915,634,711,412.06/20,806,160.90
  6. Step 6: Final answer
    x = 17,394,637.89

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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.