Finding the Fourth Proportional to 18,974,537.12, 28,467,126.60 and 7,622,957.36
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Solution
The fourth proportional to 18,974,537.12, 28,467,126.60 and 7,622,957.36 is: 11,436,573.70
Step by Step Solution
- Step 1: Write the proportion equation
18,974,537.12 : 28,467,126.60 = 7,622,957.36 : x - Step 2: Convert to fraction form
18,974,537.12/28,467,126.60 = 7,622,957.36/x - Step 3: Cross multiply
18,974,537.12x = 28,467,126.60 × 7,622,957.36 - Step 4: Simplify right side
18,974,537.12x = 217,003,692,233,521.81 - Step 5: Solve for x
x = 217,003,692,233,521.81/18,974,537.12 - Step 6: Final answer
x = 11,436,573.70
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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.