Finding the Fourth Proportional to 129,359,431.70, 194,133,625.95 and 91,095,679.70
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Solution
The fourth proportional to 129,359,431.70, 194,133,625.95 and 91,095,679.70 is: 136,710,051.80
Step by Step Solution
- Step 1: Write the proportion equation
129,359,431.70 : 194,133,625.95 = 91,095,679.70 : x - Step 2: Convert to fraction form
129,359,431.70/194,133,625.95 = 91,095,679.70/x - Step 3: Cross multiply
129,359,431.70x = 194,133,625.95 × 91,095,679.70 - Step 4: Simplify right side
129,359,431.70x = 17,684,734,608,540,808 - Step 5: Solve for x
x = 17,684,734,608,540,808/129,359,431.70 - Step 6: Final answer
x = 136,710,051.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.