Home / 76,589,139.12-105,678,556.78-45,652,187.04

Finding the Fourth Proportional to 76,589,139.12, 105,678,556.78 and 45,652,187.04

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Solution

The fourth proportional to 76,589,139.12, 105,678,556.78 and 45,652,187.04 is: 62,991,401.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,589,139.12 : 105,678,556.78 = 45,652,187.04 : x
  2. Step 2: Convert to fraction form
    76,589,139.12/105,678,556.78 = 45,652,187.04/x
  3. Step 3: Cross multiply
    76,589,139.12x = 105,678,556.78 × 45,652,187.04
  4. Step 4: Simplify right side
    76,589,139.12x = 4,824,457,240,237,820
  5. Step 5: Solve for x
    x = 4,824,457,240,237,820/76,589,139.12
  6. Step 6: Final answer
    x = 62,991,401.86

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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.