Home / 5,171,425.92-7,136,778.24-2,879,441.28

Finding the Fourth Proportional to 5,171,425.92, 7,136,778.24 and 2,879,441.28

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Solution

The fourth proportional to 5,171,425.92, 7,136,778.24 and 2,879,441.28 is: 3,973,746.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,171,425.92 : 7,136,778.24 = 2,879,441.28 : x
  2. Step 2: Convert to fraction form
    5,171,425.92/7,136,778.24 = 2,879,441.28/x
  3. Step 3: Cross multiply
    5,171,425.92x = 7,136,778.24 × 2,879,441.28
  4. Step 4: Simplify right side
    5,171,425.92x = 20,549,933,870,461.75
  5. Step 5: Solve for x
    x = 20,549,933,870,461.75/5,171,425.92
  6. Step 6: Final answer
    x = 3,973,746.16

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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.