Home / 7,891,896.80-11,837,845.20-3,640,368.80

Finding the Fourth Proportional to 7,891,896.80, 11,837,845.20 and 3,640,368.80

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Solution

The fourth proportional to 7,891,896.80, 11,837,845.20 and 3,640,368.80 is: 5,460,553.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,891,896.80 : 11,837,845.20 = 3,640,368.80 : x
  2. Step 2: Convert to fraction form
    7,891,896.80/11,837,845.20 = 3,640,368.80/x
  3. Step 3: Cross multiply
    7,891,896.80x = 11,837,845.20 × 3,640,368.80
  4. Step 4: Simplify right side
    7,891,896.80x = 43,094,122,325,309.76
  5. Step 5: Solve for x
    x = 43,094,122,325,309.76/7,891,896.80
  6. Step 6: Final answer
    x = 5,460,553.20

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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.