Finding the Fourth Proportional to 11,085,042.29, 15,294,015.11 and 6,437,931.54
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Solution
The fourth proportional to 11,085,042.29, 15,294,015.11 and 6,437,931.54 is: 8,882,403.85
Step by Step Solution
- Step 1: Write the proportion equation
11,085,042.29 : 15,294,015.11 = 6,437,931.54 : x - Step 2: Convert to fraction form
11,085,042.29/15,294,015.11 = 6,437,931.54/x - Step 3: Cross multiply
11,085,042.29x = 15,294,015.11 × 6,437,931.54 - Step 4: Simplify right side
11,085,042.29x = 98,461,822,217,715.92 - Step 5: Solve for x
x = 98,461,822,217,715.92/11,085,042.29 - Step 6: Final answer
x = 8,882,403.85
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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.