Home / 3,319,606.80-4,979,410.20-1,639,990.80

Finding the Fourth Proportional to 3,319,606.80, 4,979,410.20 and 1,639,990.80

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Solution

The fourth proportional to 3,319,606.80, 4,979,410.20 and 1,639,990.80 is: 2,459,986.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,319,606.80 : 4,979,410.20 = 1,639,990.80 : x
  2. Step 2: Convert to fraction form
    3,319,606.80/4,979,410.20 = 1,639,990.80/x
  3. Step 3: Cross multiply
    3,319,606.80x = 4,979,410.20 × 1,639,990.80
  4. Step 4: Simplify right side
    3,319,606.80x = 8,166,186,917,426.16
  5. Step 5: Solve for x
    x = 8,166,186,917,426.16/3,319,606.80
  6. Step 6: Final answer
    x = 2,459,986.20

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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.