Home / 12,745,793.21-19,100,144.05-7,877,706.17

Finding the Fourth Proportional to 12,745,793.21, 19,100,144.05 and 7,877,706.17

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Solution

The fourth proportional to 12,745,793.21, 19,100,144.05 and 7,877,706.17 is: 11,805,096.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,745,793.21 : 19,100,144.05 = 7,877,706.17 : x
  2. Step 2: Convert to fraction form
    12,745,793.21/19,100,144.05 = 7,877,706.17/x
  3. Step 3: Cross multiply
    12,745,793.21x = 19,100,144.05 × 7,877,706.17
  4. Step 4: Simplify right side
    12,745,793.21x = 150,465,322,515,378.81
  5. Step 5: Solve for x
    x = 150,465,322,515,378.81/12,745,793.21
  6. Step 6: Final answer
    x = 11,805,096.80

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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.