Home / 256,134,633.57-353,465,912.58-138,659,963.81

Finding the Fourth Proportional to 256,134,633.57, 353,465,912.58 and 138,659,963.81

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Solution

The fourth proportional to 256,134,633.57, 353,465,912.58 and 138,659,963.81 is: 191,350,814.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,134,633.57 : 353,465,912.58 = 138,659,963.81 : x
  2. Step 2: Convert to fraction form
    256,134,633.57/353,465,912.58 = 138,659,963.81/x
  3. Step 3: Cross multiply
    256,134,633.57x = 353,465,912.58 × 138,659,963.81
  4. Step 4: Simplify right side
    256,134,633.57x = 49,011,570,644,644,096
  5. Step 5: Solve for x
    x = 49,011,570,644,644,096/256,134,633.57
  6. Step 6: Final answer
    x = 191,350,814.07

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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.