Home / 383,108,009.52-528,689,032.92-206,895,988.08

Finding the Fourth Proportional to 383,108,009.52, 528,689,032.92 and 206,895,988.08

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Solution

The fourth proportional to 383,108,009.52, 528,689,032.92 and 206,895,988.08 is: 285,516,452.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,108,009.52 : 528,689,032.92 = 206,895,988.08 : x
  2. Step 2: Convert to fraction form
    383,108,009.52/528,689,032.92 = 206,895,988.08/x
  3. Step 3: Cross multiply
    383,108,009.52x = 528,689,032.92 × 206,895,988.08
  4. Step 4: Simplify right side
    383,108,009.52x = 109,383,639,853,043,056
  5. Step 5: Solve for x
    x = 109,383,639,853,043,056/383,108,009.52
  6. Step 6: Final answer
    x = 285,516,452.63

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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.