Home / 419,904,595.60-629,856,893.40-408,567,187.60

Finding the Fourth Proportional to 419,904,595.60, 629,856,893.40 and 408,567,187.60

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Solution

The fourth proportional to 419,904,595.60, 629,856,893.40 and 408,567,187.60 is: 612,850,781.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904,595.60 : 629,856,893.40 = 408,567,187.60 : x
  2. Step 2: Convert to fraction form
    419,904,595.60/629,856,893.40 = 408,567,187.60/x
  3. Step 3: Cross multiply
    419,904,595.60x = 629,856,893.40 × 408,567,187.60
  4. Step 4: Simplify right side
    419,904,595.60x = 257,338,859,526,911,008
  5. Step 5: Solve for x
    x = 257,338,859,526,911,008/419,904,595.60
  6. Step 6: Final answer
    x = 612,850,781.40

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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.