Home / 7,947,793.20-11,921,689.80-2,898,447.60

Finding the Fourth Proportional to 7,947,793.20, 11,921,689.80 and 2,898,447.60

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Solution

The fourth proportional to 7,947,793.20, 11,921,689.80 and 2,898,447.60 is: 4,347,671.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,947,793.20 : 11,921,689.80 = 2,898,447.60 : x
  2. Step 2: Convert to fraction form
    7,947,793.20/11,921,689.80 = 2,898,447.60/x
  3. Step 3: Cross multiply
    7,947,793.20x = 11,921,689.80 × 2,898,447.60
  4. Step 4: Simplify right side
    7,947,793.20x = 34,554,393,188,754.48
  5. Step 5: Solve for x
    x = 34,554,393,188,754.48/7,947,793.20
  6. Step 6: Final answer
    x = 4,347,671.40

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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.