Home / 5,418,851.20-8,128,276.80-2,731,465.60

Finding the Fourth Proportional to 5,418,851.20, 8,128,276.80 and 2,731,465.60

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Solution

The fourth proportional to 5,418,851.20, 8,128,276.80 and 2,731,465.60 is: 4,097,198.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418,851.20 : 8,128,276.80 = 2,731,465.60 : x
  2. Step 2: Convert to fraction form
    5,418,851.20/8,128,276.80 = 2,731,465.60/x
  3. Step 3: Cross multiply
    5,418,851.20x = 8,128,276.80 × 2,731,465.60
  4. Step 4: Simplify right side
    5,418,851.20x = 22,202,108,466,478.08
  5. Step 5: Solve for x
    x = 22,202,108,466,478.08/5,418,851.20
  6. Step 6: Final answer
    x = 4,097,198.40

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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.