Home / 729,076,591.07-1,006,128,761.90-394,549,129.27

Finding the Fourth Proportional to 729,076,591.07, 1,006,128,761.90 and 394,549,129.27

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Solution

The fourth proportional to 729,076,591.07, 1,006,128,761.90 and 394,549,129.27 is: 544,479,457.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,076,591.07 : 1,006,128,761.90 = 394,549,129.27 : x
  2. Step 2: Convert to fraction form
    729,076,591.07/1,006,128,761.90 = 394,549,129.27/x
  3. Step 3: Cross multiply
    729,076,591.07x = 1,006,128,761.90 × 394,549,129.27
  4. Step 4: Simplify right side
    729,076,591.07x = 396,967,226,941,148,096
  5. Step 5: Solve for x
    x = 396,967,226,941,148,096/729,076,591.07
  6. Step 6: Final answer
    x = 544,479,457.72

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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.