Home / 28,135,468.48-38,826,112.56-15,577,082.80

Finding the Fourth Proportional to 28,135,468.48, 38,826,112.56 and 15,577,082.80

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Solution

The fourth proportional to 28,135,468.48, 38,826,112.56 and 15,577,082.80 is: 21,495,912.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,135,468.48 : 38,826,112.56 = 15,577,082.80 : x
  2. Step 2: Convert to fraction form
    28,135,468.48/38,826,112.56 = 15,577,082.80/x
  3. Step 3: Cross multiply
    28,135,468.48x = 38,826,112.56 × 15,577,082.80
  4. Step 4: Simplify right side
    28,135,468.48x = 604,797,570,149,240
  5. Step 5: Solve for x
    x = 604,797,570,149,240/28,135,468.48
  6. Step 6: Final answer
    x = 21,495,912.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.