Home / 217,284,543.72-299,800,183.50-137,870,650.20

Finding the Fourth Proportional to 217,284,543.72, 299,800,183.50 and 137,870,650.20

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Solution

The fourth proportional to 217,284,543.72, 299,800,183.50 and 137,870,650.20 is: 190,228,193.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,284,543.72 : 299,800,183.50 = 137,870,650.20 : x
  2. Step 2: Convert to fraction form
    217,284,543.72/299,800,183.50 = 137,870,650.20/x
  3. Step 3: Cross multiply
    217,284,543.72x = 299,800,183.50 × 137,870,650.20
  4. Step 4: Simplify right side
    217,284,543.72x = 41,333,646,229,224,312
  5. Step 5: Solve for x
    x = 41,333,646,229,224,312/217,284,543.72
  6. Step 6: Final answer
    x = 190,228,193.51

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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.