Home / 115,638,584.69-159,580,819.89-71,576,811.38

Finding the Fourth Proportional to 115,638,584.69, 159,580,819.89 and 71,576,811.38

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Solution

The fourth proportional to 115,638,584.69, 159,580,819.89 and 71,576,811.38 is: 98,775,735.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,638,584.69 : 159,580,819.89 = 71,576,811.38 : x
  2. Step 2: Convert to fraction form
    115,638,584.69/159,580,819.89 = 71,576,811.38/x
  3. Step 3: Cross multiply
    115,638,584.69x = 159,580,819.89 × 71,576,811.38
  4. Step 4: Simplify right side
    115,638,584.69x = 11,422,286,244,334,378
  5. Step 5: Solve for x
    x = 11,422,286,244,334,378/115,638,584.69
  6. Step 6: Final answer
    x = 98,775,735.41

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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.