Home / 18,802,785.28-28,206,688.74-7,440,576.76

Finding the Fourth Proportional to 18,802,785.28, 28,206,688.74 and 7,440,576.76

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Solution

The fourth proportional to 18,802,785.28, 28,206,688.74 and 7,440,576.76 is: 11,161,858.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,802,785.28 : 28,206,688.74 = 7,440,576.76 : x
  2. Step 2: Convert to fraction form
    18,802,785.28/28,206,688.74 = 7,440,576.76/x
  3. Step 3: Cross multiply
    18,802,785.28x = 28,206,688.74 × 7,440,576.76
  4. Step 4: Simplify right side
    18,802,785.28x = 209,874,032,715,397.66
  5. Step 5: Solve for x
    x = 209,874,032,715,397.66/18,802,785.28
  6. Step 6: Final answer
    x = 11,161,858.71

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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.