Home / 55,012,092.72-82,520,880.12-20,936,079.60

Finding the Fourth Proportional to 55,012,092.72, 82,520,880.12 and 20,936,079.60

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Solution

The fourth proportional to 55,012,092.72, 82,520,880.12 and 20,936,079.60 is: 31,405,162.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,012,092.72 : 82,520,880.12 = 20,936,079.60 : x
  2. Step 2: Convert to fraction form
    55,012,092.72/82,520,880.12 = 20,936,079.60/x
  3. Step 3: Cross multiply
    55,012,092.72x = 82,520,880.12 × 20,936,079.60
  4. Step 4: Simplify right side
    55,012,092.72x = 1,727,663,714,854,377.75
  5. Step 5: Solve for x
    x = 1,727,663,714,854,377.75/55,012,092.72
  6. Step 6: Final answer
    x = 31,405,162.56

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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.