Finding the Fourth Proportional to 11,442,484.79, 15,790,913.75 and 6,215,491.31
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Solution
The fourth proportional to 11,442,484.79, 15,790,913.75 and 6,215,491.31 is: 8,577,532.68
Step by Step Solution
- Step 1: Write the proportion equation
11,442,484.79 : 15,790,913.75 = 6,215,491.31 : x - Step 2: Convert to fraction form
11,442,484.79/15,790,913.75 = 6,215,491.31/x - Step 3: Cross multiply
11,442,484.79x = 15,790,913.75 × 6,215,491.31 - Step 4: Simplify right side
11,442,484.79x = 98,148,287,215,492.56 - Step 5: Solve for x
x = 98,148,287,215,492.56/11,442,484.79 - Step 6: Final answer
x = 8,577,532.68
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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.