Finding the Fourth Proportional to 5,419,792.36, 8,129,691.90 and 1,376,583.40
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Solution
The fourth proportional to 5,419,792.36, 8,129,691.90 and 1,376,583.40 is: 2,064,875.95
Step by Step Solution
- Step 1: Write the proportion equation
5,419,792.36 : 8,129,691.90 = 1,376,583.40 : x - Step 2: Convert to fraction form
5,419,792.36/8,129,691.90 = 1,376,583.40/x - Step 3: Cross multiply
5,419,792.36x = 8,129,691.90 × 1,376,583.40 - Step 4: Simplify right side
5,419,792.36x = 11,191,198,916,654.46 - Step 5: Solve for x
x = 11,191,198,916,654.46/5,419,792.36 - Step 6: Final answer
x = 2,064,875.95
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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.