Home / 138,759,413.88-208,058,441.52-52,504,483.80

Finding the Fourth Proportional to 138,759,413.88, 208,058,441.52 and 52,504,483.80

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Solution

The fourth proportional to 138,759,413.88, 208,058,441.52 and 52,504,483.80 is: 78,726,197.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,759,413.88 : 208,058,441.52 = 52,504,483.80 : x
  2. Step 2: Convert to fraction form
    138,759,413.88/208,058,441.52 = 52,504,483.80/x
  3. Step 3: Cross multiply
    138,759,413.88x = 208,058,441.52 × 52,504,483.80
  4. Step 4: Simplify right side
    138,759,413.88x = 10,924,001,072,240,088
  5. Step 5: Solve for x
    x = 10,924,001,072,240,088/138,759,413.88
  6. Step 6: Final answer
    x = 78,726,197.86

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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.