Home / 30,951,165.72-42,667,592.22-21,629,795.52

Finding the Fourth Proportional to 30,951,165.72, 42,667,592.22 and 21,629,795.52

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Solution

The fourth proportional to 30,951,165.72, 42,667,592.22 and 21,629,795.52 is: 29,817,658.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,951,165.72 : 42,667,592.22 = 21,629,795.52 : x
  2. Step 2: Convert to fraction form
    30,951,165.72/42,667,592.22 = 21,629,795.52/x
  3. Step 3: Cross multiply
    30,951,165.72x = 42,667,592.22 × 21,629,795.52
  4. Step 4: Simplify right side
    30,951,165.72x = 922,891,295,049,342.75
  5. Step 5: Solve for x
    x = 922,891,295,049,342.75/30,951,165.72
  6. Step 6: Final answer
    x = 29,817,658.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.