Home / 664,693,003.60-996,148,209.69-517,318,509.40

Finding the Fourth Proportional to 664,693,003.60, 996,148,209.69 and 517,318,509.40

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Solution

The fourth proportional to 664,693,003.60, 996,148,209.69 and 517,318,509.40 is: 775,284,084.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,693,003.60 : 996,148,209.69 = 517,318,509.40 : x
  2. Step 2: Convert to fraction form
    664,693,003.60/996,148,209.69 = 517,318,509.40/x
  3. Step 3: Cross multiply
    664,693,003.60x = 996,148,209.69 × 517,318,509.40
  4. Step 4: Simplify right side
    664,693,003.60x = 515,325,906,978,309,440
  5. Step 5: Solve for x
    x = 515,325,906,978,309,440/664,693,003.60
  6. Step 6: Final answer
    x = 775,284,084.81

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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.