Finding the Fourth Proportional to 9,961,790.18, 13,747,121.40 and 5,611,299.62
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Solution
The fourth proportional to 9,961,790.18, 13,747,121.40 and 5,611,299.62 is: 7,743,509.52
Step by Step Solution
- Step 1: Write the proportion equation
9,961,790.18 : 13,747,121.40 = 5,611,299.62 : x - Step 2: Convert to fraction form
9,961,790.18/13,747,121.40 = 5,611,299.62/x - Step 3: Cross multiply
9,961,790.18x = 13,747,121.40 × 5,611,299.62 - Step 4: Simplify right side
9,961,790.18x = 77,139,217,019,178.27 - Step 5: Solve for x
x = 77,139,217,019,178.27/9,961,790.18 - Step 6: Final answer
x = 7,743,509.52
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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.