Home / 981,673,131.36-1,472,400,921.60-351,380,016.48

Finding the Fourth Proportional to 981,673,131.36, 1,472,400,921.60 and 351,380,016.48

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Solution

The fourth proportional to 981,673,131.36, 1,472,400,921.60 and 351,380,016.48 is: 527,031,089.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,673,131.36 : 1,472,400,921.60 = 351,380,016.48 : x
  2. Step 2: Convert to fraction form
    981,673,131.36/1,472,400,921.60 = 351,380,016.48/x
  3. Step 3: Cross multiply
    981,673,131.36x = 1,472,400,921.60 × 351,380,016.48
  4. Step 4: Simplify right side
    981,673,131.36x = 517,372,260,096,975,168
  5. Step 5: Solve for x
    x = 517,372,260,096,975,168/981,673,131.36
  6. Step 6: Final answer
    x = 527,031,089.65

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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.