Home / 2,639,807.40-3,959,711.10-2,002,078.20

Finding the Fourth Proportional to 2,639,807.40, 3,959,711.10 and 2,002,078.20

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Solution

The fourth proportional to 2,639,807.40, 3,959,711.10 and 2,002,078.20 is: 3,003,117.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,639,807.40 : 3,959,711.10 = 2,002,078.20 : x
  2. Step 2: Convert to fraction form
    2,639,807.40/3,959,711.10 = 2,002,078.20/x
  3. Step 3: Cross multiply
    2,639,807.40x = 3,959,711.10 × 2,002,078.20
  4. Step 4: Simplify right side
    2,639,807.40x = 7,927,651,271,608.02
  5. Step 5: Solve for x
    x = 7,927,651,271,608.02/2,639,807.40
  6. Step 6: Final answer
    x = 3,003,117.30

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Double scale
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Similar ratio
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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.