Home / 5,175,612.20-7,142,252.03-2,820,831.06

Finding the Fourth Proportional to 5,175,612.20, 7,142,252.03 and 2,820,831.06

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Solution

The fourth proportional to 5,175,612.20, 7,142,252.03 and 2,820,831.06 is: 3,892,696.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,175,612.20 : 7,142,252.03 = 2,820,831.06 : x
  2. Step 2: Convert to fraction form
    5,175,612.20/7,142,252.03 = 2,820,831.06/x
  3. Step 3: Cross multiply
    5,175,612.20x = 7,142,252.03 × 2,820,831.06
  4. Step 4: Simplify right side
    5,175,612.20x = 20,147,086,339,720.70
  5. Step 5: Solve for x
    x = 20,147,086,339,720.70/5,175,612.20
  6. Step 6: Final answer
    x = 3,892,696.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.