Home / 762,604,643.40-1,143,906,965.10-217,275,318.60

Finding the Fourth Proportional to 762,604,643.40, 1,143,906,965.10 and 217,275,318.60

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Solution

The fourth proportional to 762,604,643.40, 1,143,906,965.10 and 217,275,318.60 is: 325,912,977.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,604,643.40 : 1,143,906,965.10 = 217,275,318.60 : x
  2. Step 2: Convert to fraction form
    762,604,643.40/1,143,906,965.10 = 217,275,318.60/x
  3. Step 3: Cross multiply
    762,604,643.40x = 1,143,906,965.10 × 217,275,318.60
  4. Step 4: Simplify right side
    762,604,643.40x = 248,542,750,290,861,568
  5. Step 5: Solve for x
    x = 248,542,750,290,861,568/762,604,643.40
  6. Step 6: Final answer
    x = 325,912,977.90

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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.