Finding the Fourth Proportional to 18,509,110.80, 27,771,539.40 and 8,919,553.20
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Solution
The fourth proportional to 18,509,110.80, 27,771,539.40 and 8,919,553.20 is: 13,383,123.90
Step by Step Solution
- Step 1: Write the proportion equation
18,509,110.80 : 27,771,539.40 = 8,919,553.20 : x - Step 2: Convert to fraction form
18,509,110.80/27,771,539.40 = 8,919,553.20/x - Step 3: Cross multiply
18,509,110.80x = 27,771,539.40 × 8,919,553.20 - Step 4: Simplify right side
18,509,110.80x = 247,709,723,124,196.03 - Step 5: Solve for x
x = 247,709,723,124,196.03/18,509,110.80 - Step 6: Final answer
x = 13,383,123.90
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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.