Home / 12,457,540.40-18,690,976.20-4,889,937.20

Finding the Fourth Proportional to 12,457,540.40, 18,690,976.20 and 4,889,937.20

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Solution

The fourth proportional to 12,457,540.40, 18,690,976.20 and 4,889,937.20 is: 7,336,737.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,457,540.40 : 18,690,976.20 = 4,889,937.20 : x
  2. Step 2: Convert to fraction form
    12,457,540.40/18,690,976.20 = 4,889,937.20/x
  3. Step 3: Cross multiply
    12,457,540.40x = 18,690,976.20 × 4,889,937.20
  4. Step 4: Simplify right side
    12,457,540.40x = 91,397,699,824,694.64
  5. Step 5: Solve for x
    x = 91,397,699,824,694.64/12,457,540.40
  6. Step 6: Final answer
    x = 7,336,737.18

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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.