Home / 28,608,286.92-42,912,430.38-8,413,528.92

Finding the Fourth Proportional to 28,608,286.92, 42,912,430.38 and 8,413,528.92

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Solution

The fourth proportional to 28,608,286.92, 42,912,430.38 and 8,413,528.92 is: 12,620,293.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,608,286.92 : 42,912,430.38 = 8,413,528.92 : x
  2. Step 2: Convert to fraction form
    28,608,286.92/42,912,430.38 = 8,413,528.92/x
  3. Step 3: Cross multiply
    28,608,286.92x = 42,912,430.38 × 8,413,528.92
  4. Step 4: Simplify right side
    28,608,286.92x = 361,044,974,029,616.62
  5. Step 5: Solve for x
    x = 361,044,974,029,616.62/28,608,286.92
  6. Step 6: Final answer
    x = 12,620,293.38

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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.