Home / 6,439,076.80-9,658,615.20-5,711,243.20

Finding the Fourth Proportional to 6,439,076.80, 9,658,615.20 and 5,711,243.20

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Solution

The fourth proportional to 6,439,076.80, 9,658,615.20 and 5,711,243.20 is: 8,566,864.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,439,076.80 : 9,658,615.20 = 5,711,243.20 : x
  2. Step 2: Convert to fraction form
    6,439,076.80/9,658,615.20 = 5,711,243.20/x
  3. Step 3: Cross multiply
    6,439,076.80x = 9,658,615.20 × 5,711,243.20
  4. Step 4: Simplify right side
    6,439,076.80x = 55,162,700,382,416.64
  5. Step 5: Solve for x
    x = 55,162,700,382,416.64/6,439,076.80
  6. Step 6: Final answer
    x = 8,566,864.80

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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.