Finding the Fourth Proportional to 113,527,211.80, 170,290,817.70 and 77,695,403.80
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Solution
The fourth proportional to 113,527,211.80, 170,290,817.70 and 77,695,403.80 is: 116,543,105.70
Step by Step Solution
- Step 1: Write the proportion equation
113,527,211.80 : 170,290,817.70 = 77,695,403.80 : x - Step 2: Convert to fraction form
113,527,211.80/170,290,817.70 = 77,695,403.80/x - Step 3: Cross multiply
113,527,211.80x = 170,290,817.70 × 77,695,403.80 - Step 4: Simplify right side
113,527,211.80x = 13,230,813,844,633,686 - Step 5: Solve for x
x = 13,230,813,844,633,686/113,527,211.80 - Step 6: Final answer
x = 116,543,105.70
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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.