Home / 30,290,665.05-45,435,997.58-18,197,429.85

Finding the Fourth Proportional to 30,290,665.05, 45,435,997.58 and 18,197,429.85

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Solution

The fourth proportional to 30,290,665.05, 45,435,997.58 and 18,197,429.85 is: 27,296,144.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,290,665.05 : 45,435,997.58 = 18,197,429.85 : x
  2. Step 2: Convert to fraction form
    30,290,665.05/45,435,997.58 = 18,197,429.85/x
  3. Step 3: Cross multiply
    30,290,665.05x = 45,435,997.58 × 18,197,429.85
  4. Step 4: Simplify right side
    30,290,665.05x = 826,818,378,535,832.75
  5. Step 5: Solve for x
    x = 826,818,378,535,832.75/30,290,665.05
  6. Step 6: Final answer
    x = 27,296,144.78

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1.5x scale

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.