Home / 3,778,074,879.12-5,215,415,155.56-2,440,617,083.28

Finding the Fourth Proportional to 3,778,074,879.12, 5,215,415,155.56 and 2,440,617,083.28

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Solution

The fourth proportional to 3,778,074,879.12, 5,215,415,155.56 and 2,440,617,083.28 is: 3,369,131,563.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,778,074,879.12 : 5,215,415,155.56 = 2,440,617,083.28 : x
  2. Step 2: Convert to fraction form
    3,778,074,879.12/5,215,415,155.56 = 2,440,617,083.28/x
  3. Step 3: Cross multiply
    3,778,074,879.12x = 5,215,415,155.56 × 2,440,617,083.28
  4. Step 4: Simplify right side
    3,778,074,879.12x = 12,728,831,325,057,157,120
  5. Step 5: Solve for x
    x = 12,728,831,325,057,157,120/3,778,074,879.12
  6. Step 6: Final answer
    x = 3,369,131,563.64

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Double scale
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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.