Home / 248,076,520.75-372,170,785.40-82,079,632.70

Finding the Fourth Proportional to 248,076,520.75, 372,170,785.40 and 82,079,632.70

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Solution

The fourth proportional to 248,076,520.75, 372,170,785.40 and 82,079,632.70 is: 123,137,978.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,076,520.75 : 372,170,785.40 = 82,079,632.70 : x
  2. Step 2: Convert to fraction form
    248,076,520.75/372,170,785.40 = 82,079,632.70/x
  3. Step 3: Cross multiply
    248,076,520.75x = 372,170,785.40 × 82,079,632.70
  4. Step 4: Simplify right side
    248,076,520.75x = 30,547,641,367,196,820
  5. Step 5: Solve for x
    x = 30,547,641,367,196,820/248,076,520.75
  6. Step 6: Final answer
    x = 123,137,978.86

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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.