Finding the Fourth Proportional to 99,647,526.70, 149,471,290.05 and 86,016,065.05
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Solution
The fourth proportional to 99,647,526.70, 149,471,290.05 and 86,016,065.05 is: 129,024,097.58
Step by Step Solution
- Step 1: Write the proportion equation
99,647,526.70 : 149,471,290.05 = 86,016,065.05 : x - Step 2: Convert to fraction form
99,647,526.70/149,471,290.05 = 86,016,065.05/x - Step 3: Cross multiply
99,647,526.70x = 149,471,290.05 × 86,016,065.05 - Step 4: Simplify right side
99,647,526.70x = 12,856,932,208,048,218 - Step 5: Solve for x
x = 12,856,932,208,048,218/99,647,526.70 - Step 6: Final answer
x = 129,024,097.58
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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.