Home / 729,076,588.07-1,006,128,757.76-394,549,126.27

Finding the Fourth Proportional to 729,076,588.07, 1,006,128,757.76 and 394,549,126.27

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Solution

The fourth proportional to 729,076,588.07, 1,006,128,757.76 and 394,549,126.27 is: 544,479,453.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,076,588.07 : 1,006,128,757.76 = 394,549,126.27 : x
  2. Step 2: Convert to fraction form
    729,076,588.07/1,006,128,757.76 = 394,549,126.27/x
  3. Step 3: Cross multiply
    729,076,588.07x = 1,006,128,757.76 × 394,549,126.27
  4. Step 4: Simplify right side
    729,076,588.07x = 396,967,222,284,840,384
  5. Step 5: Solve for x
    x = 396,967,222,284,840,384/729,076,588.07
  6. Step 6: Final answer
    x = 544,479,453.58

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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.