Finding the Fourth Proportional to 9,727,121.12, 13,424,121.78 and 5,376,113.96
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Solution
The fourth proportional to 9,727,121.12, 13,424,121.78 and 5,376,113.96 is: 7,419,421.18
Step by Step Solution
- Step 1: Write the proportion equation
9,727,121.12 : 13,424,121.78 = 5,376,113.96 : x - Step 2: Convert to fraction form
9,727,121.12/13,424,121.78 = 5,376,113.96/x - Step 3: Cross multiply
9,727,121.12x = 13,424,121.78 × 5,376,113.96 - Step 4: Simplify right side
9,727,121.12x = 72,169,608,502,198.05 - Step 5: Solve for x
x = 72,169,608,502,198.05/9,727,121.12 - Step 6: Final answer
x = 7,419,421.18
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.