Home / 1,279,856,525,633-1,918,440,917,642.20-430,618,222,578.48

Finding the Fourth Proportional to 1,279,856,525,633, 1,918,440,917,642.20 and 430,618,222,578.48

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Solution

The fourth proportional to 1,279,856,525,633, 1,918,440,917,642.20 and 430,618,222,578.48 is: 645,475,177,515.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,856,525,633 : 1,918,440,917,642.20 = 430,618,222,578.48 : x
  2. Step 2: Convert to fraction form
    1,279,856,525,633/1,918,440,917,642.20 = 430,618,222,578.48/x
  3. Step 3: Cross multiply
    1,279,856,525,633x = 1,918,440,917,642.20 × 430,618,222,578.48
  4. Step 4: Simplify right side
    1,279,856,525,633x = 826,115,618,076,912,238,198,784
  5. Step 5: Solve for x
    x = 826,115,618,076,912,238,198,784/1,279,856,525,633
  6. Step 6: Final answer
    x = 645,475,177,515.17

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.