Home / 38,558,689.47-57,835,997.01-12,647,577.60

Finding the Fourth Proportional to 38,558,689.47, 57,835,997.01 and 12,647,577.60

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Solution

The fourth proportional to 38,558,689.47, 57,835,997.01 and 12,647,577.60 is: 18,970,698.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,558,689.47 : 57,835,997.01 = 12,647,577.60 : x
  2. Step 2: Convert to fraction form
    38,558,689.47/57,835,997.01 = 12,647,577.60/x
  3. Step 3: Cross multiply
    38,558,689.47x = 57,835,997.01 × 12,647,577.60
  4. Step 4: Simplify right side
    38,558,689.47x = 731,485,260,257,342.88
  5. Step 5: Solve for x
    x = 731,485,260,257,342.88/38,558,689.47
  6. Step 6: Final answer
    x = 18,970,698.18

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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.