Finding the Fourth Proportional to 29,910,172.80, 41,274,842.79 and 16,860,140.90
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Solution
The fourth proportional to 29,910,172.80, 41,274,842.79 and 16,860,140.90 is: 23,266,320.45
Step by Step Solution
- Step 1: Write the proportion equation
29,910,172.80 : 41,274,842.79 = 16,860,140.90 : x - Step 2: Convert to fraction form
29,910,172.80/41,274,842.79 = 16,860,140.90/x - Step 3: Cross multiply
29,910,172.80x = 41,274,842.79 × 16,860,140.90 - Step 4: Simplify right side
29,910,172.80x = 695,899,665,076,381.12 - Step 5: Solve for x
x = 695,899,665,076,381.12/29,910,172.80 - Step 6: Final answer
x = 23,266,320.45
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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.