Home / 692,212,430.73-955,253,201.01-378,946,644.70

Finding the Fourth Proportional to 692,212,430.73, 955,253,201.01 and 378,946,644.70

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Solution

The fourth proportional to 692,212,430.73, 955,253,201.01 and 378,946,644.70 is: 522,946,395.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,212,430.73 : 955,253,201.01 = 378,946,644.70 : x
  2. Step 2: Convert to fraction form
    692,212,430.73/955,253,201.01 = 378,946,644.70/x
  3. Step 3: Cross multiply
    692,212,430.73x = 955,253,201.01 × 378,946,644.70
  4. Step 4: Simplify right side
    692,212,430.73x = 361,989,995,361,674,112
  5. Step 5: Solve for x
    x = 361,989,995,361,674,112/692,212,430.73
  6. Step 6: Final answer
    x = 522,946,395.20

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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.