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Finding the Fourth Proportional to 551,292,455.40, 760,749,309.54 and 303,759,957.48

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Solution

The fourth proportional to 551,292,455.40, 760,749,309.54 and 303,759,957.48 is: 419,169,853.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,292,455.40 : 760,749,309.54 = 303,759,957.48 : x
  2. Step 2: Convert to fraction form
    551,292,455.40/760,749,309.54 = 303,759,957.48/x
  3. Step 3: Cross multiply
    551,292,455.40x = 760,749,309.54 × 303,759,957.48
  4. Step 4: Simplify right side
    551,292,455.40x = 231,085,177,918,809,760
  5. Step 5: Solve for x
    x = 231,085,177,918,809,760/551,292,455.40
  6. Step 6: Final answer
    x = 419,169,853.78

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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.