Finding the Fourth Proportional to 1,286,689,644.54, 1,929,715,602.21 and 366,573,954.78
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Solution
The fourth proportional to 1,286,689,644.54, 1,929,715,602.21 and 366,573,954.78 is: 549,770,088.62
Step by Step Solution
- Step 1: Write the proportion equation
1,286,689,644.54 : 1,929,715,602.21 = 366,573,954.78 : x - Step 2: Convert to fraction form
1,286,689,644.54/1,929,715,602.21 = 366,573,954.78/x - Step 3: Cross multiply
1,286,689,644.54x = 1,929,715,602.21 × 366,573,954.78 - Step 4: Simplify right side
1,286,689,644.54x = 707,383,479,902,788,992 - Step 5: Solve for x
x = 707,383,479,902,788,992/1,286,689,644.54 - Step 6: Final answer
x = 549,770,088.62
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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.