Home / 419,905,600.40-629,858,400.60-379,090,931.60

Finding the Fourth Proportional to 419,905,600.40, 629,858,400.60 and 379,090,931.60

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Solution

The fourth proportional to 419,905,600.40, 629,858,400.60 and 379,090,931.60 is: 568,636,397.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,905,600.40 : 629,858,400.60 = 379,090,931.60 : x
  2. Step 2: Convert to fraction form
    419,905,600.40/629,858,400.60 = 379,090,931.60/x
  3. Step 3: Cross multiply
    419,905,600.40x = 629,858,400.60 × 379,090,931.60
  4. Step 4: Simplify right side
    419,905,600.40x = 238,773,607,859,540,032
  5. Step 5: Solve for x
    x = 238,773,607,859,540,032/419,905,600.40
  6. Step 6: Final answer
    x = 568,636,397.40

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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.