Home / 1,972,476,522.15-2,722,288,408.96-1,209,385,603.58

Finding the Fourth Proportional to 1,972,476,522.15, 2,722,288,408.96 and 1,209,385,603.58

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Solution

The fourth proportional to 1,972,476,522.15, 2,722,288,408.96 and 1,209,385,603.58 is: 1,669,118,173.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,972,476,522.15 : 2,722,288,408.96 = 1,209,385,603.58 : x
  2. Step 2: Convert to fraction form
    1,972,476,522.15/2,722,288,408.96 = 1,209,385,603.58/x
  3. Step 3: Cross multiply
    1,972,476,522.15x = 2,722,288,408.96 × 1,209,385,603.58
  4. Step 4: Simplify right side
    1,972,476,522.15x = 3,292,296,410,569,269,248
  5. Step 5: Solve for x
    x = 3,292,296,410,569,269,248/1,972,476,522.15
  6. Step 6: Final answer
    x = 1,669,118,173.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.