Home / 729,072,308.64-1,006,122,325.92-394,544,747.60

Finding the Fourth Proportional to 729,072,308.64, 1,006,122,325.92 and 394,544,747.60

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Solution

The fourth proportional to 729,072,308.64, 1,006,122,325.92 and 394,544,747.60 is: 544,473,126.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,072,308.64 : 1,006,122,325.92 = 394,544,747.60 : x
  2. Step 2: Convert to fraction form
    729,072,308.64/1,006,122,325.92 = 394,544,747.60/x
  3. Step 3: Cross multiply
    729,072,308.64x = 1,006,122,325.92 × 394,544,747.60
  4. Step 4: Simplify right side
    729,072,308.64x = 396,960,279,134,831,360
  5. Step 5: Solve for x
    x = 396,960,279,134,831,360/729,072,308.64
  6. Step 6: Final answer
    x = 544,473,126.23

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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.