Home / 5,347,961.20-8,020,192.20-1,981,730.80

Finding the Fourth Proportional to 5,347,961.20, 8,020,192.20 and 1,981,730.80

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Solution

The fourth proportional to 5,347,961.20, 8,020,192.20 and 1,981,730.80 is: 2,971,947.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,347,961.20 : 8,020,192.20 = 1,981,730.80 : x
  2. Step 2: Convert to fraction form
    5,347,961.20/8,020,192.20 = 1,981,730.80/x
  3. Step 3: Cross multiply
    5,347,961.20x = 8,020,192.20 × 1,981,730.80
  4. Step 4: Simplify right side
    5,347,961.20x = 15,893,861,904,659.76
  5. Step 5: Solve for x
    x = 15,893,861,904,659.76/5,347,961.20
  6. Step 6: Final answer
    x = 2,971,947.87

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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.