Home / 1,321,107,692.80-1,981,661,539.20-885,751,225.60

Finding the Fourth Proportional to 1,321,107,692.80, 1,981,661,539.20 and 885,751,225.60

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Solution

The fourth proportional to 1,321,107,692.80, 1,981,661,539.20 and 885,751,225.60 is: 1,328,626,838.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,107,692.80 : 1,981,661,539.20 = 885,751,225.60 : x
  2. Step 2: Convert to fraction form
    1,321,107,692.80/1,981,661,539.20 = 885,751,225.60/x
  3. Step 3: Cross multiply
    1,321,107,692.80x = 1,981,661,539.20 × 885,751,225.60
  4. Step 4: Simplify right side
    1,321,107,692.80x = 1,755,259,137,070,782,464
  5. Step 5: Solve for x
    x = 1,755,259,137,070,782,464/1,321,107,692.80
  6. Step 6: Final answer
    x = 1,328,626,838.40

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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.