Home / 5,175,968.12-7,142,740.32-2,821,186.16

Finding the Fourth Proportional to 5,175,968.12, 7,142,740.32 and 2,821,186.16

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Solution

The fourth proportional to 5,175,968.12, 7,142,740.32 and 2,821,186.16 is: 3,893,184.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,175,968.12 : 7,142,740.32 = 2,821,186.16 : x
  2. Step 2: Convert to fraction form
    5,175,968.12/7,142,740.32 = 2,821,186.16/x
  3. Step 3: Cross multiply
    5,175,968.12x = 7,142,740.32 × 2,821,186.16
  4. Step 4: Simplify right side
    5,175,968.12x = 20,151,000,135,257.97
  5. Step 5: Solve for x
    x = 20,151,000,135,257.97/5,175,968.12
  6. Step 6: Final answer
    x = 3,893,184.75

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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.