Home / 72,656,869.56-100,290,776.61-43,297,408.68

Finding the Fourth Proportional to 72,656,869.56, 100,290,776.61 and 43,297,408.68

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Solution

The fourth proportional to 72,656,869.56, 100,290,776.61 and 43,297,408.68 is: 59,764,902.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,656,869.56 : 100,290,776.61 = 43,297,408.68 : x
  2. Step 2: Convert to fraction form
    72,656,869.56/100,290,776.61 = 43,297,408.68/x
  3. Step 3: Cross multiply
    72,656,869.56x = 100,290,776.61 × 43,297,408.68
  4. Step 4: Simplify right side
    72,656,869.56x = 4,342,330,741,717,755
  5. Step 5: Solve for x
    x = 4,342,330,741,717,755/72,656,869.56
  6. Step 6: Final answer
    x = 59,764,902.73

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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.