Finding the Fourth Proportional to 39,929,571.30, 55,102,845.42 and 21,594,856.80
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Solution
The fourth proportional to 39,929,571.30, 55,102,845.42 and 21,594,856.80 is: 29,800,922.41
Step by Step Solution
- Step 1: Write the proportion equation
39,929,571.30 : 55,102,845.42 = 21,594,856.80 : x - Step 2: Convert to fraction form
39,929,571.30/55,102,845.42 = 21,594,856.80/x - Step 3: Cross multiply
39,929,571.30x = 55,102,845.42 × 21,594,856.80 - Step 4: Simplify right side
39,929,571.30x = 1,189,938,056,117,436 - Step 5: Solve for x
x = 1,189,938,056,117,436/39,929,571.30 - Step 6: Final answer
x = 29,800,922.41
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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.