Home / 221,425,322.70-332,137,984.05-205,301,009.10

Finding the Fourth Proportional to 221,425,322.70, 332,137,984.05 and 205,301,009.10

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Solution

The fourth proportional to 221,425,322.70, 332,137,984.05 and 205,301,009.10 is: 307,951,513.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,425,322.70 : 332,137,984.05 = 205,301,009.10 : x
  2. Step 2: Convert to fraction form
    221,425,322.70/332,137,984.05 = 205,301,009.10/x
  3. Step 3: Cross multiply
    221,425,322.70x = 332,137,984.05 × 205,301,009.10
  4. Step 4: Simplify right side
    221,425,322.70x = 68,188,263,285,904,704
  5. Step 5: Solve for x
    x = 68,188,263,285,904,704/221,425,322.70
  6. Step 6: Final answer
    x = 307,951,513.65

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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.