Home / 76,328,043.12-114,203,154.96-45,220,407.84

Finding the Fourth Proportional to 76,328,043.12, 114,203,154.96 and 45,220,407.84

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Solution

The fourth proportional to 76,328,043.12, 114,203,154.96 and 45,220,407.84 is: 67,659,447.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,328,043.12 : 114,203,154.96 = 45,220,407.84 : x
  2. Step 2: Convert to fraction form
    76,328,043.12/114,203,154.96 = 45,220,407.84/x
  3. Step 3: Cross multiply
    76,328,043.12x = 114,203,154.96 × 45,220,407.84
  4. Step 4: Simplify right side
    76,328,043.12x = 5,164,313,243,905,919
  5. Step 5: Solve for x
    x = 5,164,313,243,905,919/76,328,043.12
  6. Step 6: Final answer
    x = 67,659,447.73

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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.