Home / 20,321,956.54-28,044,327.09-11,029,526.61

Finding the Fourth Proportional to 20,321,956.54, 28,044,327.09 and 11,029,526.61

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Solution

The fourth proportional to 20,321,956.54, 28,044,327.09 and 11,029,526.61 is: 15,220,761.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,321,956.54 : 28,044,327.09 = 11,029,526.61 : x
  2. Step 2: Convert to fraction form
    20,321,956.54/28,044,327.09 = 11,029,526.61/x
  3. Step 3: Cross multiply
    20,321,956.54x = 28,044,327.09 × 11,029,526.61
  4. Step 4: Simplify right side
    20,321,956.54x = 309,315,651,898,698.88
  5. Step 5: Solve for x
    x = 309,315,651,898,698.88/20,321,956.54
  6. Step 6: Final answer
    x = 15,220,761.41

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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.