Home / 861,530,936.40-1,292,322,692.43-336,879,084.24

Finding the Fourth Proportional to 861,530,936.40, 1,292,322,692.43 and 336,879,084.24

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Solution

The fourth proportional to 861,530,936.40, 1,292,322,692.43 and 336,879,084.24 is: 505,328,905.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,530,936.40 : 1,292,322,692.43 = 336,879,084.24 : x
  2. Step 2: Convert to fraction form
    861,530,936.40/1,292,322,692.43 = 336,879,084.24/x
  3. Step 3: Cross multiply
    861,530,936.40x = 1,292,322,692.43 × 336,879,084.24
  4. Step 4: Simplify right side
    861,530,936.40x = 435,356,485,168,389,632
  5. Step 5: Solve for x
    x = 435,356,485,168,389,632/861,530,936.40
  6. Step 6: Final answer
    x = 505,328,905.53

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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.