Home / 11,890,839.36-16,416,157.44-7,828,268.16

Finding the Fourth Proportional to 11,890,839.36, 16,416,157.44 and 7,828,268.16

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Solution

The fourth proportional to 11,890,839.36, 16,416,157.44 and 7,828,268.16 is: 10,807,486.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,890,839.36 : 16,416,157.44 = 7,828,268.16 : x
  2. Step 2: Convert to fraction form
    11,890,839.36/16,416,157.44 = 7,828,268.16/x
  3. Step 3: Cross multiply
    11,890,839.36x = 16,416,157.44 × 7,828,268.16
  4. Step 4: Simplify right side
    11,890,839.36x = 128,510,082,597,099.11
  5. Step 5: Solve for x
    x = 128,510,082,597,099.11/11,890,839.36
  6. Step 6: Final answer
    x = 10,807,486.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.