Home / 5,175,684.64-7,142,351.90-2,820,903.58

Finding the Fourth Proportional to 5,175,684.64, 7,142,351.90 and 2,820,903.58

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Solution

The fourth proportional to 5,175,684.64, 7,142,351.90 and 2,820,903.58 is: 3,892,796.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,175,684.64 : 7,142,351.90 = 2,820,903.58 : x
  2. Step 2: Convert to fraction form
    5,175,684.64/7,142,351.90 = 2,820,903.58/x
  3. Step 3: Cross multiply
    5,175,684.64x = 7,142,351.90 × 2,820,903.58
  4. Step 4: Simplify right side
    5,175,684.64x = 20,147,886,039,153.22
  5. Step 5: Solve for x
    x = 20,147,886,039,153.22/5,175,684.64
  6. Step 6: Final answer
    x = 3,892,796.30

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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.