Home / 1,212,603,514.80-1,815,504,049.80-1,178,591,290.80

Finding the Fourth Proportional to 1,212,603,514.80, 1,815,504,049.80 and 1,178,591,290.80

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Solution

The fourth proportional to 1,212,603,514.80, 1,815,504,049.80 and 1,178,591,290.80 is: 1,764,581,114.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,603,514.80 : 1,815,504,049.80 = 1,178,591,290.80 : x
  2. Step 2: Convert to fraction form
    1,212,603,514.80/1,815,504,049.80 = 1,178,591,290.80/x
  3. Step 3: Cross multiply
    1,212,603,514.80x = 1,815,504,049.80 × 1,178,591,290.80
  4. Step 4: Simplify right side
    1,212,603,514.80x = 2,139,737,261,506,409,216
  5. Step 5: Solve for x
    x = 2,139,737,261,506,409,216/1,212,603,514.80
  6. Step 6: Final answer
    x = 1,764,581,114.43

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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.