Home / 10,890,608.40-16,335,912.60-7,867,299.60

Finding the Fourth Proportional to 10,890,608.40, 16,335,912.60 and 7,867,299.60

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Solution

The fourth proportional to 10,890,608.40, 16,335,912.60 and 7,867,299.60 is: 11,800,949.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,890,608.40 : 16,335,912.60 = 7,867,299.60 : x
  2. Step 2: Convert to fraction form
    10,890,608.40/16,335,912.60 = 7,867,299.60/x
  3. Step 3: Cross multiply
    10,890,608.40x = 16,335,912.60 × 7,867,299.60
  4. Step 4: Simplify right side
    10,890,608.40x = 128,519,518,663,614.95
  5. Step 5: Solve for x
    x = 128,519,518,663,614.95/10,890,608.40
  6. Step 6: Final answer
    x = 11,800,949.40

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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.