Home / 667,096,772.07-1,000,640,119.80-200,756,188.31

Finding the Fourth Proportional to 667,096,772.07, 1,000,640,119.80 and 200,756,188.31

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Solution

The fourth proportional to 667,096,772.07, 1,000,640,119.80 and 200,756,188.31 is: 301,132,766.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,096,772.07 : 1,000,640,119.80 = 200,756,188.31 : x
  2. Step 2: Convert to fraction form
    667,096,772.07/1,000,640,119.80 = 200,756,188.31/x
  3. Step 3: Cross multiply
    667,096,772.07x = 1,000,640,119.80 × 200,756,188.31
  4. Step 4: Simplify right side
    667,096,772.07x = 200,884,696,323,611,360
  5. Step 5: Solve for x
    x = 200,884,696,323,611,360/667,096,772.07
  6. Step 6: Final answer
    x = 301,132,766.24

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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.