Home / 128,884,028.56-177,863,736.28-70,150,497.84

Finding the Fourth Proportional to 128,884,028.56, 177,863,736.28 and 70,150,497.84

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Solution

The fourth proportional to 128,884,028.56, 177,863,736.28 and 70,150,497.84 is: 96,809,742.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,884,028.56 : 177,863,736.28 = 70,150,497.84 : x
  2. Step 2: Convert to fraction form
    128,884,028.56/177,863,736.28 = 70,150,497.84/x
  3. Step 3: Cross multiply
    128,884,028.56x = 177,863,736.28 × 70,150,497.84
  4. Step 4: Simplify right side
    128,884,028.56x = 12,477,229,647,549,094
  5. Step 5: Solve for x
    x = 12,477,229,647,549,094/128,884,028.56
  6. Step 6: Final answer
    x = 96,809,742.74

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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.