Finding the Fourth Proportional to 7,381,476.30, 11,072,214.45 and 5,491,908.30
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Solution
The fourth proportional to 7,381,476.30, 11,072,214.45 and 5,491,908.30 is: 8,237,862.45
Step by Step Solution
- Step 1: Write the proportion equation
7,381,476.30 : 11,072,214.45 = 5,491,908.30 : x - Step 2: Convert to fraction form
7,381,476.30/11,072,214.45 = 5,491,908.30/x - Step 3: Cross multiply
7,381,476.30x = 11,072,214.45 × 5,491,908.30 - Step 4: Simplify right side
7,381,476.30x = 60,807,586,437,334.93 - Step 5: Solve for x
x = 60,807,586,437,334.93/7,381,476.30 - Step 6: Final answer
x = 8,237,862.45
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1.5x scale
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.