Home / 209,689,956.77-314,580,338.31-80,297,571.51

Finding the Fourth Proportional to 209,689,956.77, 314,580,338.31 and 80,297,571.51

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Solution

The fourth proportional to 209,689,956.77, 314,580,338.31 and 80,297,571.51 is: 120,463,743.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,689,956.77 : 314,580,338.31 = 80,297,571.51 : x
  2. Step 2: Convert to fraction form
    209,689,956.77/314,580,338.31 = 80,297,571.51/x
  3. Step 3: Cross multiply
    209,689,956.77x = 314,580,338.31 × 80,297,571.51
  4. Step 4: Simplify right side
    209,689,956.77x = 25,260,037,209,383,896
  5. Step 5: Solve for x
    x = 25,260,037,209,383,896/209,689,956.77
  6. Step 6: Final answer
    x = 120,463,743.70

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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.