Home / 7,408,413.60-11,112,620.40-3,148,720.80

Finding the Fourth Proportional to 7,408,413.60, 11,112,620.40 and 3,148,720.80

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Solution

The fourth proportional to 7,408,413.60, 11,112,620.40 and 3,148,720.80 is: 4,723,081.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,408,413.60 : 11,112,620.40 = 3,148,720.80 : x
  2. Step 2: Convert to fraction form
    7,408,413.60/11,112,620.40 = 3,148,720.80/x
  3. Step 3: Cross multiply
    7,408,413.60x = 11,112,620.40 × 3,148,720.80
  4. Step 4: Simplify right side
    7,408,413.60x = 34,990,538,995,984.32
  5. Step 5: Solve for x
    x = 34,990,538,995,984.32/7,408,413.60
  6. Step 6: Final answer
    x = 4,723,081.20

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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.