Home / 20,513,750.91-30,760,515.58-7,202,896.78

Finding the Fourth Proportional to 20,513,750.91, 30,760,515.58 and 7,202,896.78

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Solution

The fourth proportional to 20,513,750.91, 30,760,515.58 and 7,202,896.78 is: 10,800,795.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,513,750.91 : 30,760,515.58 = 7,202,896.78 : x
  2. Step 2: Convert to fraction form
    20,513,750.91/30,760,515.58 = 7,202,896.78/x
  3. Step 3: Cross multiply
    20,513,750.91x = 30,760,515.58 × 7,202,896.78
  4. Step 4: Simplify right side
    20,513,750.91x = 221,564,818,622,321.81
  5. Step 5: Solve for x
    x = 221,564,818,622,321.81/20,513,750.91
  6. Step 6: Final answer
    x = 10,800,795.02

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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.