Home / 408,156,740.70-612,235,111.05-165,993,438.30

Finding the Fourth Proportional to 408,156,740.70, 612,235,111.05 and 165,993,438.30

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Solution

The fourth proportional to 408,156,740.70, 612,235,111.05 and 165,993,438.30 is: 248,990,157.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,156,740.70 : 612,235,111.05 = 165,993,438.30 : x
  2. Step 2: Convert to fraction form
    408,156,740.70/612,235,111.05 = 165,993,438.30/x
  3. Step 3: Cross multiply
    408,156,740.70x = 612,235,111.05 × 165,993,438.30
  4. Step 4: Simplify right side
    408,156,740.70x = 101,627,011,131,171,824
  5. Step 5: Solve for x
    x = 101,627,011,131,171,824/408,156,740.70
  6. Step 6: Final answer
    x = 248,990,157.45

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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.