Home / 664,692,989.09-996,148,187.98-517,318,494.89

Finding the Fourth Proportional to 664,692,989.09, 996,148,187.98 and 517,318,494.89

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Solution

The fourth proportional to 664,692,989.09, 996,148,187.98 and 517,318,494.89 is: 775,284,063.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,692,989.09 : 996,148,187.98 = 517,318,494.89 : x
  2. Step 2: Convert to fraction form
    664,692,989.09/996,148,187.98 = 517,318,494.89/x
  3. Step 3: Cross multiply
    664,692,989.09x = 996,148,187.98 × 517,318,494.89
  4. Step 4: Simplify right side
    664,692,989.09x = 515,325,881,286,940,352
  5. Step 5: Solve for x
    x = 515,325,881,286,940,352/664,692,989.09
  6. Step 6: Final answer
    x = 775,284,063.09

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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.