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Finding the Fourth Proportional to 17,302,978.20, 25,954,467.30 and 8,345,026.20

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Solution

The fourth proportional to 17,302,978.20, 25,954,467.30 and 8,345,026.20 is: 12,517,539.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,302,978.20 : 25,954,467.30 = 8,345,026.20 : x
  2. Step 2: Convert to fraction form
    17,302,978.20/25,954,467.30 = 8,345,026.20/x
  3. Step 3: Cross multiply
    17,302,978.20x = 25,954,467.30 × 8,345,026.20
  4. Step 4: Simplify right side
    17,302,978.20x = 216,590,709,625,543.28
  5. Step 5: Solve for x
    x = 216,590,709,625,543.28/17,302,978.20
  6. Step 6: Final answer
    x = 12,517,539.30

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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.