Home / 91,309,994.94-126,007,782.15-50,057,178.78

Finding the Fourth Proportional to 91,309,994.94, 126,007,782.15 and 50,057,178.78

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Solution

The fourth proportional to 91,309,994.94, 126,007,782.15 and 50,057,178.78 is: 69,078,900.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,309,994.94 : 126,007,782.15 = 50,057,178.78 : x
  2. Step 2: Convert to fraction form
    91,309,994.94/126,007,782.15 = 50,057,178.78/x
  3. Step 3: Cross multiply
    91,309,994.94x = 126,007,782.15 × 50,057,178.78
  4. Step 4: Simplify right side
    91,309,994.94x = 6,307,594,078,753,843
  5. Step 5: Solve for x
    x = 6,307,594,078,753,843/91,309,994.94
  6. Step 6: Final answer
    x = 69,078,900.76

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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.