Home / 3,128,143.20-4,692,214.80-2,456,296.80

Finding the Fourth Proportional to 3,128,143.20, 4,692,214.80 and 2,456,296.80

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Solution

The fourth proportional to 3,128,143.20, 4,692,214.80 and 2,456,296.80 is: 3,684,445.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128,143.20 : 4,692,214.80 = 2,456,296.80 : x
  2. Step 2: Convert to fraction form
    3,128,143.20/4,692,214.80 = 2,456,296.80/x
  3. Step 3: Cross multiply
    3,128,143.20x = 4,692,214.80 × 2,456,296.80
  4. Step 4: Simplify right side
    3,128,143.20x = 11,525,472,198,152.64
  5. Step 5: Solve for x
    x = 11,525,472,198,152.64/3,128,143.20
  6. Step 6: Final answer
    x = 3,684,445.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.