Finding the Fourth Proportional to 21,580,107.70, 32,370,161.55 and 5,623,755.70
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Solution
The fourth proportional to 21,580,107.70, 32,370,161.55 and 5,623,755.70 is: 8,435,633.55
Step by Step Solution
- Step 1: Write the proportion equation
21,580,107.70 : 32,370,161.55 = 5,623,755.70 : x - Step 2: Convert to fraction form
21,580,107.70/32,370,161.55 = 5,623,755.70/x - Step 3: Cross multiply
21,580,107.70x = 32,370,161.55 × 5,623,755.70 - Step 4: Simplify right side
21,580,107.70x = 182,041,880,526,733.34 - Step 5: Solve for x
x = 182,041,880,526,733.34/21,580,107.70 - Step 6: Final answer
x = 8,435,633.55
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1.5x scale
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.