Home / 393,203,679.40-590,183,432.70-199,334,002.60

Finding the Fourth Proportional to 393,203,679.40, 590,183,432.70 and 199,334,002.60

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Solution

The fourth proportional to 393,203,679.40, 590,183,432.70 and 199,334,002.60 is: 299,192,586.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,203,679.40 : 590,183,432.70 = 199,334,002.60 : x
  2. Step 2: Convert to fraction form
    393,203,679.40/590,183,432.70 = 199,334,002.60/x
  3. Step 3: Cross multiply
    393,203,679.40x = 590,183,432.70 × 199,334,002.60
  4. Step 4: Simplify right side
    393,203,679.40x = 117,643,625,908,298,736
  5. Step 5: Solve for x
    x = 117,643,625,908,298,736/393,203,679.40
  6. Step 6: Final answer
    x = 299,192,586.62

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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.