Home / 692,212,433.24-955,253,204.46-378,946,647.20

Finding the Fourth Proportional to 692,212,433.24, 955,253,204.46 and 378,946,647.20

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Solution

The fourth proportional to 692,212,433.24, 955,253,204.46 and 378,946,647.20 is: 522,946,398.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,212,433.24 : 955,253,204.46 = 378,946,647.20 : x
  2. Step 2: Convert to fraction form
    692,212,433.24/955,253,204.46 = 378,946,647.20/x
  3. Step 3: Cross multiply
    692,212,433.24x = 955,253,204.46 × 378,946,647.20
  4. Step 4: Simplify right side
    692,212,433.24x = 361,989,999,057,173,120
  5. Step 5: Solve for x
    x = 361,989,999,057,173,120/692,212,433.24
  6. Step 6: Final answer
    x = 522,946,398.64

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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.