Home / 8,979,076.80-13,468,615.20-5,190,609.60

Finding the Fourth Proportional to 8,979,076.80, 13,468,615.20 and 5,190,609.60

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Solution

The fourth proportional to 8,979,076.80, 13,468,615.20 and 5,190,609.60 is: 7,785,914.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,979,076.80 : 13,468,615.20 = 5,190,609.60 : x
  2. Step 2: Convert to fraction form
    8,979,076.80/13,468,615.20 = 5,190,609.60/x
  3. Step 3: Cross multiply
    8,979,076.80x = 13,468,615.20 × 5,190,609.60
  4. Step 4: Simplify right side
    8,979,076.80x = 69,910,323,355,825.91
  5. Step 5: Solve for x
    x = 69,910,323,355,825.91/8,979,076.80
  6. Step 6: Final answer
    x = 7,785,914.40

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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.