Home / 819,220,138.56-1,228,831,390.44-334,545,946.56

Finding the Fourth Proportional to 819,220,138.56, 1,228,831,390.44 and 334,545,946.56

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Solution

The fourth proportional to 819,220,138.56, 1,228,831,390.44 and 334,545,946.56 is: 501,819,402.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,220,138.56 : 1,228,831,390.44 = 334,545,946.56 : x
  2. Step 2: Convert to fraction form
    819,220,138.56/1,228,831,390.44 = 334,545,946.56/x
  3. Step 3: Cross multiply
    819,220,138.56x = 1,228,831,390.44 × 334,545,946.56
  4. Step 4: Simplify right side
    819,220,138.56x = 411,100,560,677,390,784
  5. Step 5: Solve for x
    x = 411,100,560,677,390,784/819,220,138.56
  6. Step 6: Final answer
    x = 501,819,402.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.