Home / 43,138,053.46-64,708,408.80-18,864,485.80

Finding the Fourth Proportional to 43,138,053.46, 64,708,408.80 and 18,864,485.80

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Solution

The fourth proportional to 43,138,053.46, 64,708,408.80 and 18,864,485.80 is: 28,297,309.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,138,053.46 : 64,708,408.80 = 18,864,485.80 : x
  2. Step 2: Convert to fraction form
    43,138,053.46/64,708,408.80 = 18,864,485.80/x
  3. Step 3: Cross multiply
    43,138,053.46x = 64,708,408.80 × 18,864,485.80
  4. Step 4: Simplify right side
    43,138,053.46x = 1,220,690,858,948,195
  5. Step 5: Solve for x
    x = 1,220,690,858,948,195/43,138,053.46
  6. Step 6: Final answer
    x = 28,297,309.71

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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.