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Finding the Fourth Proportional to 618,751,769.44, 853,668,250.32 and 350,798,856.52

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Solution

The fourth proportional to 618,751,769.44, 853,668,250.32 and 350,798,856.52 is: 483,983,821.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,751,769.44 : 853,668,250.32 = 350,798,856.52 : x
  2. Step 2: Convert to fraction form
    618,751,769.44/853,668,250.32 = 350,798,856.52/x
  3. Step 3: Cross multiply
    618,751,769.44x = 853,668,250.32 × 350,798,856.52
  4. Step 4: Simplify right side
    618,751,769.44x = 299,465,846,059,685,120
  5. Step 5: Solve for x
    x = 299,465,846,059,685,120/618,751,769.44
  6. Step 6: Final answer
    x = 483,983,821.70

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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.