Home / 981,673,128.36-1,472,400,917.10-351,380,013.48

Finding the Fourth Proportional to 981,673,128.36, 1,472,400,917.10 and 351,380,013.48

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Solution

The fourth proportional to 981,673,128.36, 1,472,400,917.10 and 351,380,013.48 is: 527,031,085.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,673,128.36 : 1,472,400,917.10 = 351,380,013.48 : x
  2. Step 2: Convert to fraction form
    981,673,128.36/1,472,400,917.10 = 351,380,013.48/x
  3. Step 3: Cross multiply
    981,673,128.36x = 1,472,400,917.10 × 351,380,013.48
  4. Step 4: Simplify right side
    981,673,128.36x = 517,372,254,098,562,368
  5. Step 5: Solve for x
    x = 517,372,254,098,562,368/981,673,128.36
  6. Step 6: Final answer
    x = 527,031,085.15

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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.