Home / 811,190,617,383.10-1,216,785,926,074.60-776,797,456,474.30

Finding the Fourth Proportional to 811,190,617,383.10, 1,216,785,926,074.60 and 776,797,456,474.30

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Solution

The fourth proportional to 811,190,617,383.10, 1,216,785,926,074.60 and 776,797,456,474.30 is: 1,165,196,184,711.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,190,617,383.10 : 1,216,785,926,074.60 = 776,797,456,474.30 : x
  2. Step 2: Convert to fraction form
    811,190,617,383.10/1,216,785,926,074.60 = 776,797,456,474.30/x
  3. Step 3: Cross multiply
    811,190,617,383.10x = 1,216,785,926,074.60 × 776,797,456,474.30
  4. Step 4: Simplify right side
    811,190,617,383.10x = 945,196,212,448,475,089,993,728
  5. Step 5: Solve for x
    x = 945,196,212,448,475,089,993,728/811,190,617,383.10
  6. Step 6: Final answer
    x = 1,165,196,184,711.40

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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.