Home / 138,108,154,190.26-190,587,241,018.99-77,141,388,936.83

Finding the Fourth Proportional to 138,108,154,190.26, 190,587,241,018.99 and 77,141,388,936.83

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Solution

The fourth proportional to 138,108,154,190.26, 190,587,241,018.99 and 77,141,388,936.83 is: 106,453,993,046.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,108,154,190.26 : 190,587,241,018.99 = 77,141,388,936.83 : x
  2. Step 2: Convert to fraction form
    138,108,154,190.26/190,587,241,018.99 = 77,141,388,936.83/x
  3. Step 3: Cross multiply
    138,108,154,190.26x = 190,587,241,018.99 × 77,141,388,936.83
  4. Step 4: Simplify right side
    138,108,154,190.26x = 14,702,164,485,842,313,150,464
  5. Step 5: Solve for x
    x = 14,702,164,485,842,313,150,464/138,108,154,190.26
  6. Step 6: Final answer
    x = 106,453,993,046.55

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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.