Home / 1,420,210,632.78-1,959,720,935.76-785,045,324.16

Finding the Fourth Proportional to 1,420,210,632.78, 1,959,720,935.76 and 785,045,324.16

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Solution

The fourth proportional to 1,420,210,632.78, 1,959,720,935.76 and 785,045,324.16 is: 1,083,268,722.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,210,632.78 : 1,959,720,935.76 = 785,045,324.16 : x
  2. Step 2: Convert to fraction form
    1,420,210,632.78/1,959,720,935.76 = 785,045,324.16/x
  3. Step 3: Cross multiply
    1,420,210,632.78x = 1,959,720,935.76 × 785,045,324.16
  4. Step 4: Simplify right side
    1,420,210,632.78x = 1,538,469,757,276,847,616
  5. Step 5: Solve for x
    x = 1,538,469,757,276,847,616/1,420,210,632.78
  6. Step 6: Final answer
    x = 1,083,268,722.09

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Half scale
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Double scale
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Similar ratio
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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.