Home / 12,618,806.42-17,413,965.17-6,817,592.78

Finding the Fourth Proportional to 12,618,806.42, 17,413,965.17 and 6,817,592.78

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Solution

The fourth proportional to 12,618,806.42, 17,413,965.17 and 6,817,592.78 is: 9,408,284.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,618,806.42 : 17,413,965.17 = 6,817,592.78 : x
  2. Step 2: Convert to fraction form
    12,618,806.42/17,413,965.17 = 6,817,592.78/x
  3. Step 3: Cross multiply
    12,618,806.42x = 17,413,965.17 × 6,817,592.78
  4. Step 4: Simplify right side
    12,618,806.42x = 118,721,323,093,005.69
  5. Step 5: Solve for x
    x = 118,721,323,093,005.69/12,618,806.42
  6. Step 6: Final answer
    x = 9,408,284.68

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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.