Home / 128,662,850.06-177,556,105.07-69,925,518.54

Finding the Fourth Proportional to 128,662,850.06, 177,556,105.07 and 69,925,518.54

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Solution

The fourth proportional to 128,662,850.06, 177,556,105.07 and 69,925,518.54 is: 96,497,961.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,662,850.06 : 177,556,105.07 = 69,925,518.54 : x
  2. Step 2: Convert to fraction form
    128,662,850.06/177,556,105.07 = 69,925,518.54/x
  3. Step 3: Cross multiply
    128,662,850.06x = 177,556,105.07 × 69,925,518.54
  4. Step 4: Simplify right side
    128,662,850.06x = 12,415,702,716,962,474
  5. Step 5: Solve for x
    x = 12,415,702,716,962,474/128,662,850.06
  6. Step 6: Final answer
    x = 96,497,961.23

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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.