Home / 13,887,005.90-20,812,413.03-7,738,742.54

Finding the Fourth Proportional to 13,887,005.90, 20,812,413.03 and 7,738,742.54

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Solution

The fourth proportional to 13,887,005.90, 20,812,413.03 and 7,738,742.54 is: 11,598,029.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,887,005.90 : 20,812,413.03 = 7,738,742.54 : x
  2. Step 2: Convert to fraction form
    13,887,005.90/20,812,413.03 = 7,738,742.54/x
  3. Step 3: Cross multiply
    13,887,005.90x = 20,812,413.03 × 7,738,742.54
  4. Step 4: Simplify right side
    13,887,005.90x = 161,061,906,075,311.31
  5. Step 5: Solve for x
    x = 161,061,906,075,311.31/13,887,005.90
  6. Step 6: Final answer
    x = 11,598,029.64

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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.