Home / 65,652,942.43-90,642,845.61-40,909,480.03

Finding the Fourth Proportional to 65,652,942.43, 90,642,845.61 and 40,909,480.03

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Solution

The fourth proportional to 65,652,942.43, 90,642,845.61 and 40,909,480.03 is: 56,481,119.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,652,942.43 : 90,642,845.61 = 40,909,480.03 : x
  2. Step 2: Convert to fraction form
    65,652,942.43/90,642,845.61 = 40,909,480.03/x
  3. Step 3: Cross multiply
    65,652,942.43x = 90,642,845.61 × 40,909,480.03
  4. Step 4: Simplify right side
    65,652,942.43x = 3,708,151,682,626,336
  5. Step 5: Solve for x
    x = 3,708,151,682,626,336/65,652,942.43
  6. Step 6: Final answer
    x = 56,481,119.44

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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.