Home / 19,428,576.25-26,786,512.86-15,931,028.65

Finding the Fourth Proportional to 19,428,576.25, 26,786,512.86 and 15,931,028.65

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Solution

The fourth proportional to 19,428,576.25, 26,786,512.86 and 15,931,028.65 is: 21,964,383.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,428,576.25 : 26,786,512.86 = 15,931,028.65 : x
  2. Step 2: Convert to fraction form
    19,428,576.25/26,786,512.86 = 15,931,028.65/x
  3. Step 3: Cross multiply
    19,428,576.25x = 26,786,512.86 × 15,931,028.65
  4. Step 4: Simplify right side
    19,428,576.25x = 426,736,703,806,253.44
  5. Step 5: Solve for x
    x = 426,736,703,806,253.44/19,428,576.25
  6. Step 6: Final answer
    x = 21,964,383.72

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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.