Home / 12,601,891.40-18,912,168.30-8,340,643.40

Finding the Fourth Proportional to 12,601,891.40, 18,912,168.30 and 8,340,643.40

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Solution

The fourth proportional to 12,601,891.40, 18,912,168.30 and 8,340,643.40 is: 12,517,141.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,601,891.40 : 18,912,168.30 = 8,340,643.40 : x
  2. Step 2: Convert to fraction form
    12,601,891.40/18,912,168.30 = 8,340,643.40/x
  3. Step 3: Cross multiply
    12,601,891.40x = 18,912,168.30 × 8,340,643.40
  4. Step 4: Simplify right side
    12,601,891.40x = 157,739,651,711,084.22
  5. Step 5: Solve for x
    x = 157,739,651,711,084.22/12,601,891.40
  6. Step 6: Final answer
    x = 12,517,141.02

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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.