Home / 76,128,556.40-105,057,492.91-41,321,237.48

Finding the Fourth Proportional to 76,128,556.40, 105,057,492.91 and 41,321,237.48

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Solution

The fourth proportional to 76,128,556.40, 105,057,492.91 and 41,321,237.48 is: 57,023,353.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,128,556.40 : 105,057,492.91 = 41,321,237.48 : x
  2. Step 2: Convert to fraction form
    76,128,556.40/105,057,492.91 = 41,321,237.48/x
  3. Step 3: Cross multiply
    76,128,556.40x = 105,057,492.91 × 41,321,237.48
  4. Step 4: Simplify right side
    76,128,556.40x = 4,341,105,612,958,936
  5. Step 5: Solve for x
    x = 4,341,105,612,958,936/76,128,556.40
  6. Step 6: Final answer
    x = 57,023,353.90

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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.