Home / 10,783,897.72-16,183,880.39-7,912,683.97

Finding the Fourth Proportional to 10,783,897.72, 16,183,880.39 and 7,912,683.97

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Solution

The fourth proportional to 10,783,897.72, 16,183,880.39 and 7,912,683.97 is: 11,874,920.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,783,897.72 : 16,183,880.39 = 7,912,683.97 : x
  2. Step 2: Convert to fraction form
    10,783,897.72/16,183,880.39 = 7,912,683.97/x
  3. Step 3: Cross multiply
    10,783,897.72x = 16,183,880.39 × 7,912,683.97
  4. Step 4: Simplify right side
    10,783,897.72x = 128,057,930,934,350.34
  5. Step 5: Solve for x
    x = 128,057,930,934,350.34/10,783,897.72
  6. Step 6: Final answer
    x = 11,874,920.76

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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.