Home / 13,178,413.20-19,746,624.60-9,777,190.80

Finding the Fourth Proportional to 13,178,413.20, 19,746,624.60 and 9,777,190.80

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Solution

The fourth proportional to 13,178,413.20, 19,746,624.60 and 9,777,190.80 is: 14,650,209.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,178,413.20 : 19,746,624.60 = 9,777,190.80 : x
  2. Step 2: Convert to fraction form
    13,178,413.20/19,746,624.60 = 9,777,190.80/x
  3. Step 3: Cross multiply
    13,178,413.20x = 19,746,624.60 × 9,777,190.80
  4. Step 4: Simplify right side
    13,178,413.20x = 193,066,516,370,173.72
  5. Step 5: Solve for x
    x = 193,066,516,370,173.72/13,178,413.20
  6. Step 6: Final answer
    x = 14,650,209.66

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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.