Home / 42,743,845.70-64,110,847.80-12,451,708.70

Finding the Fourth Proportional to 42,743,845.70, 64,110,847.80 and 12,451,708.70

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Solution

The fourth proportional to 42,743,845.70, 64,110,847.80 and 12,451,708.70 is: 18,676,129.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,743,845.70 : 64,110,847.80 = 12,451,708.70 : x
  2. Step 2: Convert to fraction form
    42,743,845.70/64,110,847.80 = 12,451,708.70/x
  3. Step 3: Cross multiply
    42,743,845.70x = 64,110,847.80 × 12,451,708.70
  4. Step 4: Simplify right side
    42,743,845.70x = 798,289,601,315,635.75
  5. Step 5: Solve for x
    x = 798,289,601,315,635.75/42,743,845.70
  6. Step 6: Final answer
    x = 18,676,129.59

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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.