Home / 213,338,081.26-320,004,789.09-51,780,017.26

Finding the Fourth Proportional to 213,338,081.26, 320,004,789.09 and 51,780,017.26

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Solution

The fourth proportional to 213,338,081.26, 320,004,789.09 and 51,780,017.26 is: 77,669,459.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,338,081.26 : 320,004,789.09 = 51,780,017.26 : x
  2. Step 2: Convert to fraction form
    213,338,081.26/320,004,789.09 = 51,780,017.26/x
  3. Step 3: Cross multiply
    213,338,081.26x = 320,004,789.09 × 51,780,017.26
  4. Step 4: Simplify right side
    213,338,081.26x = 16,569,853,502,362,858
  5. Step 5: Solve for x
    x = 16,569,853,502,362,858/213,338,081.26
  6. Step 6: Final answer
    x = 77,669,459.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.