Home / 20,620,566.69-30,934,833.11-7,840,077.68

Finding the Fourth Proportional to 20,620,566.69, 30,934,833.11 and 7,840,077.68

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Solution

The fourth proportional to 20,620,566.69, 30,934,833.11 and 7,840,077.68 is: 11,761,630.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,620,566.69 : 30,934,833.11 = 7,840,077.68 : x
  2. Step 2: Convert to fraction form
    20,620,566.69/30,934,833.11 = 7,840,077.68/x
  3. Step 3: Cross multiply
    20,620,566.69x = 30,934,833.11 × 7,840,077.68
  4. Step 4: Simplify right side
    20,620,566.69x = 242,531,494,406,361.44
  5. Step 5: Solve for x
    x = 242,531,494,406,361.44/20,620,566.69
  6. Step 6: Final answer
    x = 11,761,630.90

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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.