Home / 490,593,143.70-735,889,716.27-199,392,040.98

Finding the Fourth Proportional to 490,593,143.70, 735,889,716.27 and 199,392,040.98

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Solution

The fourth proportional to 490,593,143.70, 735,889,716.27 and 199,392,040.98 is: 299,088,061.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,593,143.70 : 735,889,716.27 = 199,392,040.98 : x
  2. Step 2: Convert to fraction form
    490,593,143.70/735,889,716.27 = 199,392,040.98/x
  3. Step 3: Cross multiply
    490,593,143.70x = 735,889,716.27 × 199,392,040.98
  4. Step 4: Simplify right side
    490,593,143.70x = 146,730,552,463,268,416
  5. Step 5: Solve for x
    x = 146,730,552,463,268,416/490,593,143.70
  6. Step 6: Final answer
    x = 299,088,061.76

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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.