Home / 19,081,912.80-28,613,019.60-5,616,991.20

Finding the Fourth Proportional to 19,081,912.80, 28,613,019.60 and 5,616,991.20

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Solution

The fourth proportional to 19,081,912.80, 28,613,019.60 and 5,616,991.20 is: 8,422,587.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,081,912.80 : 28,613,019.60 = 5,616,991.20 : x
  2. Step 2: Convert to fraction form
    19,081,912.80/28,613,019.60 = 5,616,991.20/x
  3. Step 3: Cross multiply
    19,081,912.80x = 28,613,019.60 × 5,616,991.20
  4. Step 4: Simplify right side
    19,081,912.80x = 160,719,079,298,627.53
  5. Step 5: Solve for x
    x = 160,719,079,298,627.53/19,081,912.80
  6. Step 6: Final answer
    x = 8,422,587.45

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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.