Home / 19,191,500.70-28,802,997.45-18,561,644.70

Finding the Fourth Proportional to 19,191,500.70, 28,802,997.45 and 18,561,644.70

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Solution

The fourth proportional to 19,191,500.70, 28,802,997.45 and 18,561,644.70 is: 27,857,696.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,191,500.70 : 28,802,997.45 = 18,561,644.70 : x
  2. Step 2: Convert to fraction form
    19,191,500.70/28,802,997.45 = 18,561,644.70/x
  3. Step 3: Cross multiply
    19,191,500.70x = 28,802,997.45 × 18,561,644.70
  4. Step 4: Simplify right side
    19,191,500.70x = 534,631,004,961,906
  5. Step 5: Solve for x
    x = 534,631,004,961,906/19,191,500.70
  6. Step 6: Final answer
    x = 27,857,696.66

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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.