Home / 9,109,903.92-12,570,383.16-5,189,763.12

Finding the Fourth Proportional to 9,109,903.92, 12,570,383.16 and 5,189,763.12

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Solution

The fourth proportional to 9,109,903.92, 12,570,383.16 and 5,189,763.12 is: 7,161,141.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,109,903.92 : 12,570,383.16 = 5,189,763.12 : x
  2. Step 2: Convert to fraction form
    9,109,903.92/12,570,383.16 = 5,189,763.12/x
  3. Step 3: Cross multiply
    9,109,903.92x = 12,570,383.16 × 5,189,763.12
  4. Step 4: Simplify right side
    9,109,903.92x = 65,237,310,928,037.06
  5. Step 5: Solve for x
    x = 65,237,310,928,037.06/9,109,903.92
  6. Step 6: Final answer
    x = 7,161,141.49

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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.