Home / 154,853,816.82-213,703,906.50-84,286,016.64

Finding the Fourth Proportional to 154,853,816.82, 213,703,906.50 and 84,286,016.64

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Solution

The fourth proportional to 154,853,816.82, 213,703,906.50 and 84,286,016.64 is: 116,317,772.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,853,816.82 : 213,703,906.50 = 84,286,016.64 : x
  2. Step 2: Convert to fraction form
    154,853,816.82/213,703,906.50 = 84,286,016.64/x
  3. Step 3: Cross multiply
    154,853,816.82x = 213,703,906.50 × 84,286,016.64
  4. Step 4: Simplify right side
    154,853,816.82x = 18,012,251,019,292,004
  5. Step 5: Solve for x
    x = 18,012,251,019,292,004/154,853,816.82
  6. Step 6: Final answer
    x = 116,317,772.39

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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.