Home / 7,021,933.62-9,689,778.95-3,965,557.38

Finding the Fourth Proportional to 7,021,933.62, 9,689,778.95 and 3,965,557.38

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Solution

The fourth proportional to 7,021,933.62, 9,689,778.95 and 3,965,557.38 is: 5,472,192.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,021,933.62 : 9,689,778.95 = 3,965,557.38 : x
  2. Step 2: Convert to fraction form
    7,021,933.62/9,689,778.95 = 3,965,557.38/x
  3. Step 3: Cross multiply
    7,021,933.62x = 9,689,778.95 × 3,965,557.38
  4. Step 4: Simplify right side
    7,021,933.62x = 38,425,374,405,913.37
  5. Step 5: Solve for x
    x = 38,425,374,405,913.37/7,021,933.62
  6. Step 6: Final answer
    x = 5,472,192.77

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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.