Home / 1,168,942,109.92-1,613,082,787.28-640,308,440.80

Finding the Fourth Proportional to 1,168,942,109.92, 1,613,082,787.28 and 640,308,440.80

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Solution

The fourth proportional to 1,168,942,109.92, 1,613,082,787.28 and 640,308,440.80 is: 883,594,247.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,168,942,109.92 : 1,613,082,787.28 = 640,308,440.80 : x
  2. Step 2: Convert to fraction form
    1,168,942,109.92/1,613,082,787.28 = 640,308,440.80/x
  3. Step 3: Cross multiply
    1,168,942,109.92x = 1,613,082,787.28 × 640,308,440.80
  4. Step 4: Simplify right side
    1,168,942,109.92x = 1,032,870,524,404,574,720
  5. Step 5: Solve for x
    x = 1,032,870,524,404,574,720/1,168,942,109.92
  6. Step 6: Final answer
    x = 883,594,247.86

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Find fourth proportional to 1,168,942,110.92, 1,613,082,788.66 and 640,308,441.80
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1.5x scale

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.