Finding the Fourth Proportional to 12,972,100.19, 19,471,613.84 and 7,517,851.53
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Solution
The fourth proportional to 12,972,100.19, 19,471,613.84 and 7,517,851.53 is: 11,284,579.97
Step by Step Solution
- Step 1: Write the proportion equation
12,972,100.19 : 19,471,613.84 = 7,517,851.53 : x - Step 2: Convert to fraction form
12,972,100.19/19,471,613.84 = 7,517,851.53/x - Step 3: Cross multiply
12,972,100.19x = 19,471,613.84 × 7,517,851.53 - Step 4: Simplify right side
12,972,100.19x = 146,384,701,968,013.06 - Step 5: Solve for x
x = 146,384,701,968,013.06/12,972,100.19 - Step 6: Final answer
x = 11,284,579.97
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.