Home / 288,665,189.45-429,284,404.39-279,471,426.22

Finding the Fourth Proportional to 288,665,189.45, 429,284,404.39 and 279,471,426.22

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Solution

The fourth proportional to 288,665,189.45, 429,284,404.39 and 279,471,426.22 is: 415,612,027.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,665,189.45 : 429,284,404.39 = 279,471,426.22 : x
  2. Step 2: Convert to fraction form
    288,665,189.45/429,284,404.39 = 279,471,426.22/x
  3. Step 3: Cross multiply
    288,665,189.45x = 429,284,404.39 × 279,471,426.22
  4. Step 4: Simplify right side
    288,665,189.45x = 119,972,724,748,451,760
  5. Step 5: Solve for x
    x = 119,972,724,748,451,760/288,665,189.45
  6. Step 6: Final answer
    x = 415,612,027.83

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.