Home / 511,347,887.16-705,729,227.22-288,375,422.28

Finding the Fourth Proportional to 511,347,887.16, 705,729,227.22 and 288,375,422.28

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Solution

The fourth proportional to 511,347,887.16, 705,729,227.22 and 288,375,422.28 is: 397,997,076.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,347,887.16 : 705,729,227.22 = 288,375,422.28 : x
  2. Step 2: Convert to fraction form
    511,347,887.16/705,729,227.22 = 288,375,422.28/x
  3. Step 3: Cross multiply
    511,347,887.16x = 705,729,227.22 × 288,375,422.28
  4. Step 4: Simplify right side
    511,347,887.16x = 203,514,963,914,905,568
  5. Step 5: Solve for x
    x = 203,514,963,914,905,568/511,347,887.16
  6. Step 6: Final answer
    x = 397,997,076.01

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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.