Home / 388,135,492.39-535,622,917.17-211,922,941.60

Finding the Fourth Proportional to 388,135,492.39, 535,622,917.17 and 211,922,941.60

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Solution

The fourth proportional to 388,135,492.39, 535,622,917.17 and 211,922,941.60 is: 292,451,441.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,135,492.39 : 535,622,917.17 = 211,922,941.60 : x
  2. Step 2: Convert to fraction form
    388,135,492.39/535,622,917.17 = 211,922,941.60/x
  3. Step 3: Cross multiply
    388,135,492.39x = 535,622,917.17 × 211,922,941.60
  4. Step 4: Simplify right side
    388,135,492.39x = 113,510,784,195,039,552
  5. Step 5: Solve for x
    x = 113,510,784,195,039,552/388,135,492.39
  6. Step 6: Final answer
    x = 292,451,441.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.