Finding the Fourth Proportional to 845,511,658.13, 1,267,852,557.17 and 347,431,940.75
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Solution
The fourth proportional to 845,511,658.13, 1,267,852,557.17 and 347,431,940.75 is: 520,977,410.88
Step by Step Solution
- Step 1: Write the proportion equation
845,511,658.13 : 1,267,852,557.17 = 347,431,940.75 : x - Step 2: Convert to fraction form
845,511,658.13/1,267,852,557.17 = 347,431,940.75/x - Step 3: Cross multiply
845,511,658.13x = 1,267,852,557.17 × 347,431,940.75 - Step 4: Simplify right side
845,511,658.13x = 440,492,474,526,461,568 - Step 5: Solve for x
x = 440,492,474,526,461,568/845,511,658.13 - Step 6: Final answer
x = 520,977,410.88
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.