Home / 209,617,806.12-314,485,040.16-91,452,906.60

Finding the Fourth Proportional to 209,617,806.12, 314,485,040.16 and 91,452,906.60

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Solution

The fourth proportional to 209,617,806.12, 314,485,040.16 and 91,452,906.60 is: 137,204,808.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,617,806.12 : 314,485,040.16 = 91,452,906.60 : x
  2. Step 2: Convert to fraction form
    209,617,806.12/314,485,040.16 = 91,452,906.60/x
  3. Step 3: Cross multiply
    209,617,806.12x = 314,485,040.16 × 91,452,906.60
  4. Step 4: Simplify right side
    209,617,806.12x = 28,760,571,004,849,728
  5. Step 5: Solve for x
    x = 28,760,571,004,849,728/209,617,806.12
  6. Step 6: Final answer
    x = 137,204,808.78

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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.