Home / 12,217,893.81-16,846,876.54-7,801,812.86

Finding the Fourth Proportional to 12,217,893.81, 16,846,876.54 and 7,801,812.86

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Solution

The fourth proportional to 12,217,893.81, 16,846,876.54 and 7,801,812.86 is: 10,757,678.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,217,893.81 : 16,846,876.54 = 7,801,812.86 : x
  2. Step 2: Convert to fraction form
    12,217,893.81/16,846,876.54 = 7,801,812.86/x
  3. Step 3: Cross multiply
    12,217,893.81x = 16,846,876.54 × 7,801,812.86
  4. Step 4: Simplify right side
    12,217,893.81x = 131,436,178,017,000.66
  5. Step 5: Solve for x
    x = 131,436,178,017,000.66/12,217,893.81
  6. Step 6: Final answer
    x = 10,757,678.86

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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.