Home / 2,305,211,678.51-3,181,193,180.69-1,247,939,650.67

Finding the Fourth Proportional to 2,305,211,678.51, 3,181,193,180.69 and 1,247,939,650.67

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Solution

The fourth proportional to 2,305,211,678.51, 3,181,193,180.69 and 1,247,939,650.67 is: 1,722,157,294.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,305,211,678.51 : 3,181,193,180.69 = 1,247,939,650.67 : x
  2. Step 2: Convert to fraction form
    2,305,211,678.51/3,181,193,180.69 = 1,247,939,650.67/x
  3. Step 3: Cross multiply
    2,305,211,678.51x = 3,181,193,180.69 × 1,247,939,650.67
  4. Step 4: Simplify right side
    2,305,211,678.51x = 3,969,937,106,619,733,504
  5. Step 5: Solve for x
    x = 3,969,937,106,619,733,504/2,305,211,678.51
  6. Step 6: Final answer
    x = 1,722,157,294.11

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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.