Finding the Fourth Proportional to 91,081,763.57, 136,622,538.27 and 29,670,821.79
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Solution
The fourth proportional to 91,081,763.57, 136,622,538.27 and 29,670,821.79 is: 44,506,197.80
Step by Step Solution
- Step 1: Write the proportion equation
91,081,763.57 : 136,622,538.27 = 29,670,821.79 : x - Step 2: Convert to fraction form
91,081,763.57/136,622,538.27 = 29,670,821.79/x - Step 3: Cross multiply
91,081,763.57x = 136,622,538.27 × 29,670,821.79 - Step 4: Simplify right side
91,081,763.57x = 4,053,702,985,506,625 - Step 5: Solve for x
x = 4,053,702,985,506,625/91,081,763.57 - Step 6: Final answer
x = 44,506,197.80
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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.