Home / 1,221,760,211.40-1,832,640,317.10-445,431,198.60

Finding the Fourth Proportional to 1,221,760,211.40, 1,832,640,317.10 and 445,431,198.60

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Solution

The fourth proportional to 1,221,760,211.40, 1,832,640,317.10 and 445,431,198.60 is: 668,146,797.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,760,211.40 : 1,832,640,317.10 = 445,431,198.60 : x
  2. Step 2: Convert to fraction form
    1,221,760,211.40/1,832,640,317.10 = 445,431,198.60/x
  3. Step 3: Cross multiply
    1,221,760,211.40x = 1,832,640,317.10 × 445,431,198.60
  4. Step 4: Simplify right side
    1,221,760,211.40x = 816,315,173,048,537,088
  5. Step 5: Solve for x
    x = 816,315,173,048,537,088/1,221,760,211.40
  6. Step 6: Final answer
    x = 668,146,797.90

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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.