Home / 30,530,340.76-45,795,277.78-7,811,201.56

Finding the Fourth Proportional to 30,530,340.76, 45,795,277.78 and 7,811,201.56

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Solution

The fourth proportional to 30,530,340.76, 45,795,277.78 and 7,811,201.56 is: 11,716,742.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,530,340.76 : 45,795,277.78 = 7,811,201.56 : x
  2. Step 2: Convert to fraction form
    30,530,340.76/45,795,277.78 = 7,811,201.56/x
  3. Step 3: Cross multiply
    30,530,340.76x = 45,795,277.78 × 7,811,201.56
  4. Step 4: Simplify right side
    30,530,340.76x = 357,716,145,235,769.31
  5. Step 5: Solve for x
    x = 357,716,145,235,769.31/30,530,340.76
  6. Step 6: Final answer
    x = 11,716,742.63

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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.