Home / 18,921,940.70-28,389,497.88-5,970,091.10

Finding the Fourth Proportional to 18,921,940.70, 28,389,497.88 and 5,970,091.10

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Solution

The fourth proportional to 18,921,940.70, 28,389,497.88 and 5,970,091.10 is: 8,957,214.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,921,940.70 : 28,389,497.88 = 5,970,091.10 : x
  2. Step 2: Convert to fraction form
    18,921,940.70/28,389,497.88 = 5,970,091.10/x
  3. Step 3: Cross multiply
    18,921,940.70x = 28,389,497.88 × 5,970,091.10
  4. Step 4: Simplify right side
    18,921,940.70x = 169,487,888,626,856.84
  5. Step 5: Solve for x
    x = 169,487,888,626,856.84/18,921,940.70
  6. Step 6: Final answer
    x = 8,957,214.87

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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.