Home / 1,212,603,503.30-1,815,504,032.55-1,178,591,279.30

Finding the Fourth Proportional to 1,212,603,503.30, 1,815,504,032.55 and 1,178,591,279.30

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Solution

The fourth proportional to 1,212,603,503.30, 1,815,504,032.55 and 1,178,591,279.30 is: 1,764,581,097.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,603,503.30 : 1,815,504,032.55 = 1,178,591,279.30 : x
  2. Step 2: Convert to fraction form
    1,212,603,503.30/1,815,504,032.55 = 1,178,591,279.30/x
  3. Step 3: Cross multiply
    1,212,603,503.30x = 1,815,504,032.55 × 1,178,591,279.30
  4. Step 4: Simplify right side
    1,212,603,503.30x = 2,139,737,220,297,413,120
  5. Step 5: Solve for x
    x = 2,139,737,220,297,413,120/1,212,603,503.30
  6. Step 6: Final answer
    x = 1,764,581,097.18

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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.