Finding the Fourth Proportional to 12,379,363.11, 18,544,888.58 and 8,106,577.47
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Solution
The fourth proportional to 12,379,363.11, 18,544,888.58 and 8,106,577.47 is: 12,144,047.68
Step by Step Solution
- Step 1: Write the proportion equation
12,379,363.11 : 18,544,888.58 = 8,106,577.47 : x - Step 2: Convert to fraction form
12,379,363.11/18,544,888.58 = 8,106,577.47/x - Step 3: Cross multiply
12,379,363.11x = 18,544,888.58 × 8,106,577.47 - Step 4: Simplify right side
12,379,363.11x = 150,335,575,905,755.41 - Step 5: Solve for x
x = 150,335,575,905,755.41/12,379,363.11 - Step 6: Final answer
x = 12,144,047.68
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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.