Home / 12,472,783.20-18,705,286.80-4,902,069.60

Finding the Fourth Proportional to 12,472,783.20, 18,705,286.80 and 4,902,069.60

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Solution

The fourth proportional to 12,472,783.20, 18,705,286.80 and 4,902,069.60 is: 7,351,576.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,472,783.20 : 18,705,286.80 = 4,902,069.60 : x
  2. Step 2: Convert to fraction form
    12,472,783.20/18,705,286.80 = 4,902,069.60/x
  3. Step 3: Cross multiply
    12,472,783.20x = 18,705,286.80 × 4,902,069.60
  4. Step 4: Simplify right side
    12,472,783.20x = 91,694,617,781,561.28
  5. Step 5: Solve for x
    x = 91,694,617,781,561.28/12,472,783.20
  6. Step 6: Final answer
    x = 7,351,576.33

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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.