Home / 729,831,063.62-1,007,158,847.36-395,295,270.50

Finding the Fourth Proportional to 729,831,063.62, 1,007,158,847.36 and 395,295,270.50

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Solution

The fourth proportional to 729,831,063.62, 1,007,158,847.36 and 395,295,270.50 is: 545,503,129.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,831,063.62 : 1,007,158,847.36 = 395,295,270.50 : x
  2. Step 2: Convert to fraction form
    729,831,063.62/1,007,158,847.36 = 395,295,270.50/x
  3. Step 3: Cross multiply
    729,831,063.62x = 1,007,158,847.36 × 395,295,270.50
  4. Step 4: Simplify right side
    729,831,063.62x = 398,125,129,003,639,424
  5. Step 5: Solve for x
    x = 398,125,129,003,639,424/729,831,063.62
  6. Step 6: Final answer
    x = 545,503,129.22

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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.