Home / 20,876,442.54-28,796,755.95-13,812,024.30

Finding the Fourth Proportional to 20,876,442.54, 28,796,755.95 and 13,812,024.30

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Solution

The fourth proportional to 20,876,442.54, 28,796,755.95 and 13,812,024.30 is: 19,052,168.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,876,442.54 : 28,796,755.95 = 13,812,024.30 : x
  2. Step 2: Convert to fraction form
    20,876,442.54/28,796,755.95 = 13,812,024.30/x
  3. Step 3: Cross multiply
    20,876,442.54x = 28,796,755.95 × 13,812,024.30
  4. Step 4: Simplify right side
    20,876,442.54x = 397,741,492,942,569.62
  5. Step 5: Solve for x
    x = 397,741,492,942,569.62/20,876,442.54
  6. Step 6: Final answer
    x = 19,052,168.12

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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.