Home / 109,155,515.75-150,702,593.21-69,485,429.80

Finding the Fourth Proportional to 109,155,515.75, 150,702,593.21 and 69,485,429.80

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Solution

The fourth proportional to 109,155,515.75, 150,702,593.21 and 69,485,429.80 is: 95,933,168.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,155,515.75 : 150,702,593.21 = 69,485,429.80 : x
  2. Step 2: Convert to fraction form
    109,155,515.75/150,702,593.21 = 69,485,429.80/x
  3. Step 3: Cross multiply
    109,155,515.75x = 150,702,593.21 × 69,485,429.80
  4. Step 4: Simplify right side
    109,155,515.75x = 10,471,634,461,171,412
  5. Step 5: Solve for x
    x = 10,471,634,461,171,412/109,155,515.75
  6. Step 6: Final answer
    x = 95,933,168.28

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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.