Home / 18,147,892.65-25,043,776.53-9,888,022.81

Finding the Fourth Proportional to 18,147,892.65, 25,043,776.53 and 9,888,022.81

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Solution

The fourth proportional to 18,147,892.65, 25,043,776.53 and 9,888,022.81 is: 13,645,299.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,147,892.65 : 25,043,776.53 = 9,888,022.81 : x
  2. Step 2: Convert to fraction form
    18,147,892.65/25,043,776.53 = 9,888,022.81/x
  3. Step 3: Cross multiply
    18,147,892.65x = 25,043,776.53 × 9,888,022.81
  4. Step 4: Simplify right side
    18,147,892.65x = 247,633,433,577,182.69
  5. Step 5: Solve for x
    x = 247,633,433,577,182.69/18,147,892.65
  6. Step 6: Final answer
    x = 13,645,299.67

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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.