Home / 213,338,081.76-320,004,789.84-51,780,017.76

Finding the Fourth Proportional to 213,338,081.76, 320,004,789.84 and 51,780,017.76

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Solution

The fourth proportional to 213,338,081.76, 320,004,789.84 and 51,780,017.76 is: 77,669,460.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,338,081.76 : 320,004,789.84 = 51,780,017.76 : x
  2. Step 2: Convert to fraction form
    213,338,081.76/320,004,789.84 = 51,780,017.76/x
  3. Step 3: Cross multiply
    213,338,081.76x = 320,004,789.84 × 51,780,017.76
  4. Step 4: Simplify right side
    213,338,081.76x = 16,569,853,701,200,266
  5. Step 5: Solve for x
    x = 16,569,853,701,200,266/213,338,081.76
  6. Step 6: Final answer
    x = 77,669,460.44

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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.