Finding the Fourth Proportional to 129,657,198.63, 194,399,406.45 and 71,392,314
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Solution
The fourth proportional to 129,657,198.63, 194,399,406.45 and 71,392,314 is: 107,040,901.80
Step by Step Solution
- Step 1: Write the proportion equation
129,657,198.63 : 194,399,406.45 = 71,392,314 : x - Step 2: Convert to fraction form
129,657,198.63/194,399,406.45 = 71,392,314/x - Step 3: Cross multiply
129,657,198.63x = 194,399,406.45 × 71,392,314 - Step 4: Simplify right side
129,657,198.63x = 13,878,623,466,692,024 - Step 5: Solve for x
x = 13,878,623,466,692,024/129,657,198.63 - Step 6: Final answer
x = 107,040,901.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.