Home / 1,168,942,105.92-1,613,082,781.76-640,308,436.80

Finding the Fourth Proportional to 1,168,942,105.92, 1,613,082,781.76 and 640,308,436.80

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Solution

The fourth proportional to 1,168,942,105.92, 1,613,082,781.76 and 640,308,436.80 is: 883,594,242.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,168,942,105.92 : 1,613,082,781.76 = 640,308,436.80 : x
  2. Step 2: Convert to fraction form
    1,168,942,105.92/1,613,082,781.76 = 640,308,436.80/x
  3. Step 3: Cross multiply
    1,168,942,105.92x = 1,613,082,781.76 × 640,308,436.80
  4. Step 4: Simplify right side
    1,168,942,105.92x = 1,032,870,514,417,741,056
  5. Step 5: Solve for x
    x = 1,032,870,514,417,741,056/1,168,942,105.92
  6. Step 6: Final answer
    x = 883,594,242.34

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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.