Home / 209,555,223.64-289,173,178.60-115,464,105.16

Finding the Fourth Proportional to 209,555,223.64, 289,173,178.60 and 115,464,105.16

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Solution

The fourth proportional to 209,555,223.64, 289,173,178.60 and 115,464,105.16 is: 159,333,285.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,555,223.64 : 289,173,178.60 = 115,464,105.16 : x
  2. Step 2: Convert to fraction form
    209,555,223.64/289,173,178.60 = 115,464,105.16/x
  3. Step 3: Cross multiply
    209,555,223.64x = 289,173,178.60 × 115,464,105.16
  4. Step 4: Simplify right side
    209,555,223.64x = 33,389,122,303,321,864
  5. Step 5: Solve for x
    x = 33,389,122,303,321,864/209,555,223.64
  6. Step 6: Final answer
    x = 159,333,285.63

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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.