Home / 20,572,375.35-30,864,994.02-12,383,984.91

Finding the Fourth Proportional to 20,572,375.35, 30,864,994.02 and 12,383,984.91

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Solution

The fourth proportional to 20,572,375.35, 30,864,994.02 and 12,383,984.91 is: 18,579,848.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,572,375.35 : 30,864,994.02 = 12,383,984.91 : x
  2. Step 2: Convert to fraction form
    20,572,375.35/30,864,994.02 = 12,383,984.91/x
  3. Step 3: Cross multiply
    20,572,375.35x = 30,864,994.02 × 12,383,984.91
  4. Step 4: Simplify right side
    20,572,375.35x = 382,231,620,190,920.25
  5. Step 5: Solve for x
    x = 382,231,620,190,920.25/20,572,375.35
  6. Step 6: Final answer
    x = 18,579,848.64

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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.