Finding the Fourth Proportional to 29,078,236.80, 40,128,238.08 and 16,025,961.60
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Solution
The fourth proportional to 29,078,236.80, 40,128,238.08 and 16,025,961.60 is: 22,115,976.53
Step by Step Solution
- Step 1: Write the proportion equation
29,078,236.80 : 40,128,238.08 = 16,025,961.60 : x - Step 2: Convert to fraction form
29,078,236.80/40,128,238.08 = 16,025,961.60/x - Step 3: Cross multiply
29,078,236.80x = 40,128,238.08 × 16,025,961.60 - Step 4: Simplify right side
29,078,236.80x = 643,093,602,545,737.62 - Step 5: Solve for x
x = 643,093,602,545,737.62/29,078,236.80 - Step 6: Final answer
x = 22,115,976.53
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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.