Home / 18,684,665.10-28,026,997.65-15,661,356.30

Finding the Fourth Proportional to 18,684,665.10, 28,026,997.65 and 15,661,356.30

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Solution

The fourth proportional to 18,684,665.10, 28,026,997.65 and 15,661,356.30 is: 23,492,034.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,684,665.10 : 28,026,997.65 = 15,661,356.30 : x
  2. Step 2: Convert to fraction form
    18,684,665.10/28,026,997.65 = 15,661,356.30/x
  3. Step 3: Cross multiply
    18,684,665.10x = 28,026,997.65 × 15,661,356.30
  4. Step 4: Simplify right side
    18,684,665.10x = 438,940,796,215,912.69
  5. Step 5: Solve for x
    x = 438,940,796,215,912.69/18,684,665.10
  6. Step 6: Final answer
    x = 23,492,034.45

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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.