Home / 20,717,601.78-28,581,220.53-19,757,071.38

Finding the Fourth Proportional to 20,717,601.78, 28,581,220.53 and 19,757,071.38

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Solution

The fourth proportional to 20,717,601.78, 28,581,220.53 and 19,757,071.38 is: 27,256,109.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,717,601.78 : 28,581,220.53 = 19,757,071.38 : x
  2. Step 2: Convert to fraction form
    20,717,601.78/28,581,220.53 = 19,757,071.38/x
  3. Step 3: Cross multiply
    20,717,601.78x = 28,581,220.53 × 19,757,071.38
  4. Step 4: Simplify right side
    20,717,601.78x = 564,681,214,138,731.38
  5. Step 5: Solve for x
    x = 564,681,214,138,731.38/20,717,601.78
  6. Step 6: Final answer
    x = 27,256,109.09

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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.