Home / 11,890,887.36-16,416,223.68-7,828,316.16

Finding the Fourth Proportional to 11,890,887.36, 16,416,223.68 and 7,828,316.16

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Solution

The fourth proportional to 11,890,887.36, 16,416,223.68 and 7,828,316.16 is: 10,807,552.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,890,887.36 : 16,416,223.68 = 7,828,316.16 : x
  2. Step 2: Convert to fraction form
    11,890,887.36/16,416,223.68 = 7,828,316.16/x
  3. Step 3: Cross multiply
    11,890,887.36x = 16,416,223.68 × 7,828,316.16
  4. Step 4: Simplify right side
    11,890,887.36x = 128,511,389,120,318.67
  5. Step 5: Solve for x
    x = 128,511,389,120,318.67/11,890,887.36
  6. Step 6: Final answer
    x = 10,807,552.48

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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.