Home / 389,981,495.57-585,038,009.07-131,135,184.90

Finding the Fourth Proportional to 389,981,495.57, 585,038,009.07 and 131,135,184.90

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Solution

The fourth proportional to 389,981,495.57, 585,038,009.07 and 131,135,184.90 is: 196,724,891.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,981,495.57 : 585,038,009.07 = 131,135,184.90 : x
  2. Step 2: Convert to fraction form
    389,981,495.57/585,038,009.07 = 131,135,184.90/x
  3. Step 3: Cross multiply
    389,981,495.57x = 585,038,009.07 × 131,135,184.90
  4. Step 4: Simplify right side
    389,981,495.57x = 76,719,067,492,922,336
  5. Step 5: Solve for x
    x = 76,719,067,492,922,336/389,981,495.57
  6. Step 6: Final answer
    x = 196,724,891.73

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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.