Home / 20,492,942.40-30,739,413.60-5,346,873.90

Finding the Fourth Proportional to 20,492,942.40, 30,739,413.60 and 5,346,873.90

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Solution

The fourth proportional to 20,492,942.40, 30,739,413.60 and 5,346,873.90 is: 8,020,310.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,492,942.40 : 30,739,413.60 = 5,346,873.90 : x
  2. Step 2: Convert to fraction form
    20,492,942.40/30,739,413.60 = 5,346,873.90/x
  3. Step 3: Cross multiply
    20,492,942.40x = 30,739,413.60 × 5,346,873.90
  4. Step 4: Simplify right side
    20,492,942.40x = 164,359,768,279,145.06
  5. Step 5: Solve for x
    x = 164,359,768,279,145.06/20,492,942.40
  6. Step 6: Final answer
    x = 8,020,310.85

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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.