Finding the Fourth Proportional to 20,743,770.60, 31,115,405.61 and 5,389,701.66
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Solution
The fourth proportional to 20,743,770.60, 31,115,405.61 and 5,389,701.66 is: 8,084,487.46
Step by Step Solution
- Step 1: Write the proportion equation
20,743,770.60 : 31,115,405.61 = 5,389,701.66 : x - Step 2: Convert to fraction form
20,743,770.60/31,115,405.61 = 5,389,701.66/x - Step 3: Cross multiply
20,743,770.60x = 31,115,405.61 × 5,389,701.66 - Step 4: Simplify right side
20,743,770.60x = 167,702,753,267,790.31 - Step 5: Solve for x
x = 167,702,753,267,790.31/20,743,770.60 - Step 6: Final answer
x = 8,084,487.46
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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.