Finding the Fourth Proportional to 7,215,805.18, 9,954,035.86 and 4,461,612.19
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Solution
The fourth proportional to 7,215,805.18, 9,954,035.86 and 4,461,612.19 is: 6,154,690.53
Step by Step Solution
- Step 1: Write the proportion equation
7,215,805.18 : 9,954,035.86 = 4,461,612.19 : x - Step 2: Convert to fraction form
7,215,805.18/9,954,035.86 = 4,461,612.19/x - Step 3: Cross multiply
7,215,805.18x = 9,954,035.86 × 4,461,612.19 - Step 4: Simplify right side
7,215,805.18x = 44,411,047,790,675.38 - Step 5: Solve for x
x = 44,411,047,790,675.38/7,215,805.18 - Step 6: Final answer
x = 6,154,690.53
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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.