Home / 81,147,188,128.59-111,936,594,079.44-50,610,356,038.22

Finding the Fourth Proportional to 81,147,188,128.59, 111,936,594,079.44 and 50,610,356,038.22

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Solution

The fourth proportional to 81,147,188,128.59, 111,936,594,079.44 and 50,610,356,038.22 is: 69,813,274,011.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,147,188,128.59 : 111,936,594,079.44 = 50,610,356,038.22 : x
  2. Step 2: Convert to fraction form
    81,147,188,128.59/111,936,594,079.44 = 50,610,356,038.22/x
  3. Step 3: Cross multiply
    81,147,188,128.59x = 111,936,594,079.44 × 50,610,356,038.22
  4. Step 4: Simplify right side
    81,147,188,128.59x = 5,665,150,880,065,607,696,384
  5. Step 5: Solve for x
    x = 5,665,150,880,065,607,696,384/81,147,188,128.59
  6. Step 6: Final answer
    x = 69,813,274,011.27

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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.