Home / 729,076,591.44-1,006,128,762.41-394,549,129.64

Finding the Fourth Proportional to 729,076,591.44, 1,006,128,762.41 and 394,549,129.64

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Solution

The fourth proportional to 729,076,591.44, 1,006,128,762.41 and 394,549,129.64 is: 544,479,458.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,076,591.44 : 1,006,128,762.41 = 394,549,129.64 : x
  2. Step 2: Convert to fraction form
    729,076,591.44/1,006,128,762.41 = 394,549,129.64/x
  3. Step 3: Cross multiply
    729,076,591.44x = 1,006,128,762.41 × 394,549,129.64
  4. Step 4: Simplify right side
    729,076,591.44x = 396,967,227,518,137,536
  5. Step 5: Solve for x
    x = 396,967,227,518,137,536/729,076,591.44
  6. Step 6: Final answer
    x = 544,479,458.23

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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.