Home / 5,172,729.46-7,138,587.24-2,880,890.18

Finding the Fourth Proportional to 5,172,729.46, 7,138,587.24 and 2,880,890.18

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Solution

The fourth proportional to 5,172,729.46, 7,138,587.24 and 2,880,890.18 is: 3,975,751.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,172,729.46 : 7,138,587.24 = 2,880,890.18 : x
  2. Step 2: Convert to fraction form
    5,172,729.46/7,138,587.24 = 2,880,890.18/x
  3. Step 3: Cross multiply
    5,172,729.46x = 7,138,587.24 × 2,880,890.18
  4. Step 4: Simplify right side
    5,172,729.46x = 20,565,485,878,789.30
  5. Step 5: Solve for x
    x = 20,565,485,878,789.30/5,172,729.46
  6. Step 6: Final answer
    x = 3,975,751.30

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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.