Home / 11,890,889.36-16,416,226.44-7,828,318.16

Finding the Fourth Proportional to 11,890,889.36, 16,416,226.44 and 7,828,318.16

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Solution

The fourth proportional to 11,890,889.36, 16,416,226.44 and 7,828,318.16 is: 10,807,555.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,890,889.36 : 16,416,226.44 = 7,828,318.16 : x
  2. Step 2: Convert to fraction form
    11,890,889.36/16,416,226.44 = 7,828,318.16/x
  3. Step 3: Cross multiply
    11,890,889.36x = 16,416,226.44 × 7,828,318.16
  4. Step 4: Simplify right side
    11,890,889.36x = 128,511,443,558,924.16
  5. Step 5: Solve for x
    x = 128,511,443,558,924.16/11,890,889.36
  6. Step 6: Final answer
    x = 10,807,555.24

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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.