Home / 258,731,272.20-388,096,908.30-253,629,438.60

Finding the Fourth Proportional to 258,731,272.20, 388,096,908.30 and 253,629,438.60

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Solution

The fourth proportional to 258,731,272.20, 388,096,908.30 and 253,629,438.60 is: 380,444,157.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,731,272.20 : 388,096,908.30 = 253,629,438.60 : x
  2. Step 2: Convert to fraction form
    258,731,272.20/388,096,908.30 = 253,629,438.60/x
  3. Step 3: Cross multiply
    258,731,272.20x = 388,096,908.30 × 253,629,438.60
  4. Step 4: Simplify right side
    258,731,272.20x = 98,432,800,974,524,688
  5. Step 5: Solve for x
    x = 98,432,800,974,524,688/258,731,272.20
  6. Step 6: Final answer
    x = 380,444,157.90

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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.