Home / 513,297,737.40-770,135,562.90-168,262,620.60

Finding the Fourth Proportional to 513,297,737.40, 770,135,562.90 and 168,262,620.60

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Solution

The fourth proportional to 513,297,737.40, 770,135,562.90 and 168,262,620.60 is: 252,455,872.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,297,737.40 : 770,135,562.90 = 168,262,620.60 : x
  2. Step 2: Convert to fraction form
    513,297,737.40/770,135,562.90 = 168,262,620.60/x
  3. Step 3: Cross multiply
    513,297,737.40x = 770,135,562.90 × 168,262,620.60
  4. Step 4: Simplify right side
    513,297,737.40x = 129,585,028,030,810,128
  5. Step 5: Solve for x
    x = 129,585,028,030,810,128/513,297,737.40
  6. Step 6: Final answer
    x = 252,455,872.27

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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.