Home / 20,828,342,515.97-28,742,623,775.26-12,255,324,439.62

Finding the Fourth Proportional to 20,828,342,515.97, 28,742,623,775.26 and 12,255,324,439.62

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Solution

The fourth proportional to 20,828,342,515.97, 28,742,623,775.26 and 12,255,324,439.62 is: 16,912,060,061.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,828,342,515.97 : 28,742,623,775.26 = 12,255,324,439.62 : x
  2. Step 2: Convert to fraction form
    20,828,342,515.97/28,742,623,775.26 = 12,255,324,439.62/x
  3. Step 3: Cross multiply
    20,828,342,515.97x = 28,742,623,775.26 × 12,255,324,439.62
  4. Step 4: Simplify right side
    20,828,342,515.97x = 352,250,179,611,795,783,680
  5. Step 5: Solve for x
    x = 352,250,179,611,795,783,680/20,828,342,515.97
  6. Step 6: Final answer
    x = 16,912,060,061.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.