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Finding the Fourth Proportional to 879,656,175.60, 1,318,616,461.80 and 491,664,879.60

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Solution

The fourth proportional to 879,656,175.60, 1,318,616,461.80 and 491,664,879.60 is: 737,012,280.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,656,175.60 : 1,318,616,461.80 = 491,664,879.60 : x
  2. Step 2: Convert to fraction form
    879,656,175.60/1,318,616,461.80 = 491,664,879.60/x
  3. Step 3: Cross multiply
    879,656,175.60x = 1,318,616,461.80 × 491,664,879.60
  4. Step 4: Simplify right side
    879,656,175.60x = 648,317,403,929,474,944
  5. Step 5: Solve for x
    x = 648,317,403,929,474,944/879,656,175.60
  6. Step 6: Final answer
    x = 737,012,280.38

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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.