Home / 20,743,776.12-31,115,413.86-5,389,707.16

Finding the Fourth Proportional to 20,743,776.12, 31,115,413.86 and 5,389,707.16

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Solution

The fourth proportional to 20,743,776.12, 31,115,413.86 and 5,389,707.16 is: 8,084,495.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,743,776.12 : 31,115,413.86 = 5,389,707.16 : x
  2. Step 2: Convert to fraction form
    20,743,776.12/31,115,413.86 = 5,389,707.16/x
  3. Step 3: Cross multiply
    20,743,776.12x = 31,115,413.86 × 5,389,707.16
  4. Step 4: Simplify right side
    20,743,776.12x = 167,702,968,867,605.25
  5. Step 5: Solve for x
    x = 167,702,968,867,605.25/20,743,776.12
  6. Step 6: Final answer
    x = 8,084,495.70

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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.