Home / 19,978,077.60-29,961,586.80-8,012,023.20

Finding the Fourth Proportional to 19,978,077.60, 29,961,586.80 and 8,012,023.20

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Solution

The fourth proportional to 19,978,077.60, 29,961,586.80 and 8,012,023.20 is: 12,015,817.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,978,077.60 : 29,961,586.80 = 8,012,023.20 : x
  2. Step 2: Convert to fraction form
    19,978,077.60/29,961,586.80 = 8,012,023.20/x
  3. Step 3: Cross multiply
    19,978,077.60x = 29,961,586.80 × 8,012,023.20
  4. Step 4: Simplify right side
    19,978,077.60x = 240,052,928,550,413.78
  5. Step 5: Solve for x
    x = 240,052,928,550,413.78/19,978,077.60
  6. Step 6: Final answer
    x = 12,015,817.21

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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.