Home / 351,814,942.55-485,527,622.28-203,142,329.90

Finding the Fourth Proportional to 351,814,942.55, 485,527,622.28 and 203,142,329.90

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Solution

The fourth proportional to 351,814,942.55, 485,527,622.28 and 203,142,329.90 is: 280,349,696.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,814,942.55 : 485,527,622.28 = 203,142,329.90 : x
  2. Step 2: Convert to fraction form
    351,814,942.55/485,527,622.28 = 203,142,329.90/x
  3. Step 3: Cross multiply
    351,814,942.55x = 485,527,622.28 × 203,142,329.90
  4. Step 4: Simplify right side
    351,814,942.55x = 98,631,212,419,397,664
  5. Step 5: Solve for x
    x = 98,631,212,419,397,664/351,814,942.55
  6. Step 6: Final answer
    x = 280,349,696.64

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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.