Finding the Fourth Proportional to 7,880,446.72, 11,821,340.64 and 2,487,654.40
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Solution
The fourth proportional to 7,880,446.72, 11,821,340.64 and 2,487,654.40 is: 3,731,693.28
Step by Step Solution
- Step 1: Write the proportion equation
7,880,446.72 : 11,821,340.64 = 2,487,654.40 : x - Step 2: Convert to fraction form
7,880,446.72/11,821,340.64 = 2,487,654.40/x - Step 3: Cross multiply
7,880,446.72x = 11,821,340.64 × 2,487,654.40 - Step 4: Simplify right side
7,880,446.72x = 29,407,410,056,994.82 - Step 5: Solve for x
x = 29,407,410,056,994.82/7,880,446.72 - Step 6: Final answer
x = 3,731,693.28
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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.