Home / 401,958,110,161.53-603,115,215,965.49-210,684,690,839.61

Finding the Fourth Proportional to 401,958,110,161.53, 603,115,215,965.49 and 210,684,690,839.61

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Solution

The fourth proportional to 401,958,110,161.53, 603,115,215,965.49 and 210,684,690,839.61 is: 316,120,360,813.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,958,110,161.53 : 603,115,215,965.49 = 210,684,690,839.61 : x
  2. Step 2: Convert to fraction form
    401,958,110,161.53/603,115,215,965.49 = 210,684,690,839.61/x
  3. Step 3: Cross multiply
    401,958,110,161.53x = 603,115,215,965.49 × 210,684,690,839.61
  4. Step 4: Simplify right side
    401,958,110,161.53x = 127,067,142,816,353,868,578,816
  5. Step 5: Solve for x
    x = 127,067,142,816,353,868,578,816/401,958,110,161.53
  6. Step 6: Final answer
    x = 316,120,360,813.94

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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.