Finding the Fourth Proportional to 21,519,518.64, 29,696,042.16 and 11,729,747.52
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Solution
The fourth proportional to 21,519,518.64, 29,696,042.16 and 11,729,747.52 is: 16,186,564.52
Step by Step Solution
- Step 1: Write the proportion equation
21,519,518.64 : 29,696,042.16 = 11,729,747.52 : x - Step 2: Convert to fraction form
21,519,518.64/29,696,042.16 = 11,729,747.52/x - Step 3: Cross multiply
21,519,518.64x = 29,696,042.16 × 11,729,747.52 - Step 4: Simplify right side
21,519,518.64x = 348,327,076,880,075.44 - Step 5: Solve for x
x = 348,327,076,880,075.44/21,519,518.64 - Step 6: Final answer
x = 16,186,564.52
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.