Home / 155,661,164.06-214,804,985.47-85,100,413.88

Finding the Fourth Proportional to 155,661,164.06, 214,804,985.47 and 85,100,413.88

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Solution

The fourth proportional to 155,661,164.06, 214,804,985.47 and 85,100,413.88 is: 117,434,514.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,661,164.06 : 214,804,985.47 = 85,100,413.88 : x
  2. Step 2: Convert to fraction form
    155,661,164.06/214,804,985.47 = 85,100,413.88/x
  3. Step 3: Cross multiply
    155,661,164.06x = 214,804,985.47 × 85,100,413.88
  4. Step 4: Simplify right side
    155,661,164.06x = 18,279,993,167,308,648
  5. Step 5: Solve for x
    x = 18,279,993,167,308,648/155,661,164.06
  6. Step 6: Final answer
    x = 117,434,514.11

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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.