Home / 138,759,406.88-208,058,431.06-52,504,476.80

Finding the Fourth Proportional to 138,759,406.88, 208,058,431.06 and 52,504,476.80

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Solution

The fourth proportional to 138,759,406.88, 208,058,431.06 and 52,504,476.80 is: 78,726,187.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,759,406.88 : 208,058,431.06 = 52,504,476.80 : x
  2. Step 2: Convert to fraction form
    138,759,406.88/208,058,431.06 = 52,504,476.80/x
  3. Step 3: Cross multiply
    138,759,406.88x = 208,058,431.06 × 52,504,476.80
  4. Step 4: Simplify right side
    138,759,406.88x = 10,923,999,066,634,168
  5. Step 5: Solve for x
    x = 10,923,999,066,634,168/138,759,406.88
  6. Step 6: Final answer
    x = 78,726,187.38

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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.