Home / 18,722,828.70-28,084,243.05-15,895,475.10

Finding the Fourth Proportional to 18,722,828.70, 28,084,243.05 and 15,895,475.10

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Solution

The fourth proportional to 18,722,828.70, 28,084,243.05 and 15,895,475.10 is: 23,843,212.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,722,828.70 : 28,084,243.05 = 15,895,475.10 : x
  2. Step 2: Convert to fraction form
    18,722,828.70/28,084,243.05 = 15,895,475.10/x
  3. Step 3: Cross multiply
    18,722,828.70x = 28,084,243.05 × 15,895,475.10
  4. Step 4: Simplify right side
    18,722,828.70x = 446,412,386,103,623.06
  5. Step 5: Solve for x
    x = 446,412,386,103,623.06/18,722,828.70
  6. Step 6: Final answer
    x = 23,843,212.65

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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.