Home / 78,066,432.15-107,780,644.94-50,237,493.09

Finding the Fourth Proportional to 78,066,432.15, 107,780,644.94 and 50,237,493.09

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Solution

The fourth proportional to 78,066,432.15, 107,780,644.94 and 50,237,493.09 is: 69,359,252.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,066,432.15 : 107,780,644.94 = 50,237,493.09 : x
  2. Step 2: Convert to fraction form
    78,066,432.15/107,780,644.94 = 50,237,493.09/x
  3. Step 3: Cross multiply
    78,066,432.15x = 107,780,644.94 × 50,237,493.09
  4. Step 4: Simplify right side
    78,066,432.15x = 5,414,629,405,157,807
  5. Step 5: Solve for x
    x = 5,414,629,405,157,807/78,066,432.15
  6. Step 6: Final answer
    x = 69,359,252.83

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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.