Home / 1,211,248,540.35-1,816,872,810.53-660,250,511.55

Finding the Fourth Proportional to 1,211,248,540.35, 1,816,872,810.53 and 660,250,511.55

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Solution

The fourth proportional to 1,211,248,540.35, 1,816,872,810.53 and 660,250,511.55 is: 990,375,767.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,248,540.35 : 1,816,872,810.53 = 660,250,511.55 : x
  2. Step 2: Convert to fraction form
    1,211,248,540.35/1,816,872,810.53 = 660,250,511.55/x
  3. Step 3: Cross multiply
    1,211,248,540.35x = 1,816,872,810.53 × 660,250,511.55
  4. Step 4: Simplify right side
    1,211,248,540.35x = 1,199,591,202,570,417,408
  5. Step 5: Solve for x
    x = 1,199,591,202,570,417,408/1,211,248,540.35
  6. Step 6: Final answer
    x = 990,375,767.33

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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.