Home / 12,805,622.60-19,183,550.70-7,115,664.20

Finding the Fourth Proportional to 12,805,622.60, 19,183,550.70 and 7,115,664.20

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Solution

The fourth proportional to 12,805,622.60, 19,183,550.70 and 7,115,664.20 is: 10,659,669.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,805,622.60 : 19,183,550.70 = 7,115,664.20 : x
  2. Step 2: Convert to fraction form
    12,805,622.60/19,183,550.70 = 7,115,664.20/x
  3. Step 3: Cross multiply
    12,805,622.60x = 19,183,550.70 × 7,115,664.20
  4. Step 4: Simplify right side
    12,805,622.60x = 136,503,704,944,874.94
  5. Step 5: Solve for x
    x = 136,503,704,944,874.94/12,805,622.60
  6. Step 6: Final answer
    x = 10,659,669.52

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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.