Home / 729,076,590.07-1,006,128,760.52-394,549,128.27

Finding the Fourth Proportional to 729,076,590.07, 1,006,128,760.52 and 394,549,128.27

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Solution

The fourth proportional to 729,076,590.07, 1,006,128,760.52 and 394,549,128.27 is: 544,479,456.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,076,590.07 : 1,006,128,760.52 = 394,549,128.27 : x
  2. Step 2: Convert to fraction form
    729,076,590.07/1,006,128,760.52 = 394,549,128.27/x
  3. Step 3: Cross multiply
    729,076,590.07x = 1,006,128,760.52 × 394,549,128.27
  4. Step 4: Simplify right side
    729,076,590.07x = 396,967,225,390,541,568
  5. Step 5: Solve for x
    x = 396,967,225,390,541,568/729,076,590.07
  6. Step 6: Final answer
    x = 544,479,456.34

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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.