Finding the Fourth Proportional to 40,378,833.46, 55,720,682.49 and 22,040,576.02
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Solution
The fourth proportional to 40,378,833.46, 55,720,682.49 and 22,040,576.02 is: 30,414,844.44
Step by Step Solution
- Step 1: Write the proportion equation
40,378,833.46 : 55,720,682.49 = 22,040,576.02 : x - Step 2: Convert to fraction form
40,378,833.46/55,720,682.49 = 22,040,576.02/x - Step 3: Cross multiply
40,378,833.46x = 55,720,682.49 × 22,040,576.02 - Step 4: Simplify right side
40,378,833.46x = 1,228,115,938,307,128 - Step 5: Solve for x
x = 1,228,115,938,307,128/40,378,833.46 - Step 6: Final answer
x = 30,414,844.44
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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.