Home / 76,621,771.76-105,738,017.32-41,814,462.28

Finding the Fourth Proportional to 76,621,771.76, 105,738,017.32 and 41,814,462.28

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Solution

The fourth proportional to 76,621,771.76, 105,738,017.32 and 41,814,462.28 is: 57,703,942.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,621,771.76 : 105,738,017.32 = 41,814,462.28 : x
  2. Step 2: Convert to fraction form
    76,621,771.76/105,738,017.32 = 41,814,462.28/x
  3. Step 3: Cross multiply
    76,621,771.76x = 105,738,017.32 × 41,814,462.28
  4. Step 4: Simplify right side
    76,621,771.76x = 4,421,378,336,789,126.50
  5. Step 5: Solve for x
    x = 4,421,378,336,789,126.50/76,621,771.76
  6. Step 6: Final answer
    x = 57,703,942.82

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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.