Home / 12,090,720.80-18,135,692.40-4,004,069.60

Finding the Fourth Proportional to 12,090,720.80, 18,135,692.40 and 4,004,069.60

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Solution

The fourth proportional to 12,090,720.80, 18,135,692.40 and 4,004,069.60 is: 6,005,975.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,090,720.80 : 18,135,692.40 = 4,004,069.60 : x
  2. Step 2: Convert to fraction form
    12,090,720.80/18,135,692.40 = 4,004,069.60/x
  3. Step 3: Cross multiply
    12,090,720.80x = 18,135,692.40 × 4,004,069.60
  4. Step 4: Simplify right side
    12,090,720.80x = 72,616,574,613,791.03
  5. Step 5: Solve for x
    x = 72,616,574,613,791.03/12,090,720.80
  6. Step 6: Final answer
    x = 6,005,975.64

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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.