Home / 689,885,425.74-1,034,769,843.81-223,536,979.02

Finding the Fourth Proportional to 689,885,425.74, 1,034,769,843.81 and 223,536,979.02

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Solution

The fourth proportional to 689,885,425.74, 1,034,769,843.81 and 223,536,979.02 is: 335,286,579.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,885,425.74 : 1,034,769,843.81 = 223,536,979.02 : x
  2. Step 2: Convert to fraction form
    689,885,425.74/1,034,769,843.81 = 223,536,979.02/x
  3. Step 3: Cross multiply
    689,885,425.74x = 1,034,769,843.81 × 223,536,979.02
  4. Step 4: Simplify right side
    689,885,425.74x = 231,309,324,866,284,640
  5. Step 5: Solve for x
    x = 231,309,324,866,284,640/689,885,425.74
  6. Step 6: Final answer
    x = 335,286,579.82

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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.