Home / 18,722,630.40-28,093,276.80-10,641,811.20

Finding the Fourth Proportional to 18,722,630.40, 28,093,276.80 and 10,641,811.20

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Solution

The fourth proportional to 18,722,630.40, 28,093,276.80 and 10,641,811.20 is: 15,968,020.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,722,630.40 : 28,093,276.80 = 10,641,811.20 : x
  2. Step 2: Convert to fraction form
    18,722,630.40/28,093,276.80 = 10,641,811.20/x
  3. Step 3: Cross multiply
    18,722,630.40x = 28,093,276.80 × 10,641,811.20
  4. Step 4: Simplify right side
    18,722,630.40x = 298,963,347,694,940.12
  5. Step 5: Solve for x
    x = 298,963,347,694,940.12/18,722,630.40
  6. Step 6: Final answer
    x = 15,968,020.59

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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.