Home / 692,212,430.23-955,253,200.32-378,946,644.20

Finding the Fourth Proportional to 692,212,430.23, 955,253,200.32 and 378,946,644.20

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Solution

The fourth proportional to 692,212,430.23, 955,253,200.32 and 378,946,644.20 is: 522,946,394.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,212,430.23 : 955,253,200.32 = 378,946,644.20 : x
  2. Step 2: Convert to fraction form
    692,212,430.23/955,253,200.32 = 378,946,644.20/x
  3. Step 3: Cross multiply
    692,212,430.23x = 955,253,200.32 × 378,946,644.20
  4. Step 4: Simplify right side
    692,212,430.23x = 361,989,994,622,574,400
  5. Step 5: Solve for x
    x = 361,989,994,622,574,400/692,212,430.23
  6. Step 6: Final answer
    x = 522,946,394.51

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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.