Home / 5,347,960.20-8,020,190.70-1,981,729.80

Finding the Fourth Proportional to 5,347,960.20, 8,020,190.70 and 1,981,729.80

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Solution

The fourth proportional to 5,347,960.20, 8,020,190.70 and 1,981,729.80 is: 2,971,946.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,347,960.20 : 8,020,190.70 = 1,981,729.80 : x
  2. Step 2: Convert to fraction form
    5,347,960.20/8,020,190.70 = 1,981,729.80/x
  3. Step 3: Cross multiply
    5,347,960.20x = 8,020,190.70 × 1,981,729.80
  4. Step 4: Simplify right side
    5,347,960.20x = 15,893,850,911,872.86
  5. Step 5: Solve for x
    x = 15,893,850,911,872.86/5,347,960.20
  6. Step 6: Final answer
    x = 2,971,946.37

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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.