Home / 419,397,403.67-629,095,773.18-112,689,516.55

Finding the Fourth Proportional to 419,397,403.67, 629,095,773.18 and 112,689,516.55

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Solution

The fourth proportional to 419,397,403.67, 629,095,773.18 and 112,689,516.55 is: 169,034,185.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,397,403.67 : 629,095,773.18 = 112,689,516.55 : x
  2. Step 2: Convert to fraction form
    419,397,403.67/629,095,773.18 = 112,689,516.55/x
  3. Step 3: Cross multiply
    419,397,403.67x = 629,095,773.18 × 112,689,516.55
  4. Step 4: Simplify right side
    419,397,403.67x = 70,892,498,543,328,920
  5. Step 5: Solve for x
    x = 70,892,498,543,328,920/419,397,403.67
  6. Step 6: Final answer
    x = 169,034,185.53

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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.