Finding the Fourth Proportional to 19,532,802.67, 26,949,770.21 and 15,389,990.44
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Solution
The fourth proportional to 19,532,802.67, 26,949,770.21 and 15,389,990.44 is: 21,233,855.32
Step by Step Solution
- Step 1: Write the proportion equation
19,532,802.67 : 26,949,770.21 = 15,389,990.44 : x - Step 2: Convert to fraction form
19,532,802.67/26,949,770.21 = 15,389,990.44/x - Step 3: Cross multiply
19,532,802.67x = 26,949,770.21 × 15,389,990.44 - Step 4: Simplify right side
19,532,802.67x = 414,756,705,892,096.81 - Step 5: Solve for x
x = 414,756,705,892,096.81/19,532,802.67 - Step 6: Final answer
x = 21,233,855.32
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.