Home / 78,611,369.44-108,491,762.64-47,259,568.48

Finding the Fourth Proportional to 78,611,369.44, 108,491,762.64 and 47,259,568.48

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Solution

The fourth proportional to 78,611,369.44, 108,491,762.64 and 47,259,568.48 is: 65,223,057.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,611,369.44 : 108,491,762.64 = 47,259,568.48 : x
  2. Step 2: Convert to fraction form
    78,611,369.44/108,491,762.64 = 47,259,568.48/x
  3. Step 3: Cross multiply
    78,611,369.44x = 108,491,762.64 × 47,259,568.48
  4. Step 4: Simplify right side
    78,611,369.44x = 5,127,273,886,000,985
  5. Step 5: Solve for x
    x = 5,127,273,886,000,985/78,611,369.44
  6. Step 6: Final answer
    x = 65,223,057.71

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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.