Home / 6,477,999.20-9,716,998.80-5,991,394.40

Finding the Fourth Proportional to 6,477,999.20, 9,716,998.80 and 5,991,394.40

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Solution

The fourth proportional to 6,477,999.20, 9,716,998.80 and 5,991,394.40 is: 8,987,091.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,477,999.20 : 9,716,998.80 = 5,991,394.40 : x
  2. Step 2: Convert to fraction form
    6,477,999.20/9,716,998.80 = 5,991,394.40/x
  3. Step 3: Cross multiply
    6,477,999.20x = 9,716,998.80 × 5,991,394.40
  4. Step 4: Simplify right side
    6,477,999.20x = 58,218,372,195,126.73
  5. Step 5: Solve for x
    x = 58,218,372,195,126.73/6,477,999.20
  6. Step 6: Final answer
    x = 8,987,091.60

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Similar ratio
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1.5x scale

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.