Home / 207,257,816.40-311,085,790.20-105,137,163.60

Finding the Fourth Proportional to 207,257,816.40, 311,085,790.20 and 105,137,163.60

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Solution

The fourth proportional to 207,257,816.40, 311,085,790.20 and 105,137,163.60 is: 157,806,726.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,257,816.40 : 311,085,790.20 = 105,137,163.60 : x
  2. Step 2: Convert to fraction form
    207,257,816.40/311,085,790.20 = 105,137,163.60/x
  3. Step 3: Cross multiply
    207,257,816.40x = 311,085,790.20 × 105,137,163.60
  4. Step 4: Simplify right side
    207,257,816.40x = 32,706,677,617,892,672
  5. Step 5: Solve for x
    x = 32,706,677,617,892,672/207,257,816.40
  6. Step 6: Final answer
    x = 157,806,726.84

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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.