Finding the Fourth Proportional to 726,863,442.30, 1,090,295,163.45 and 338,557,218.30
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Solution
The fourth proportional to 726,863,442.30, 1,090,295,163.45 and 338,557,218.30 is: 507,835,827.45
Step by Step Solution
- Step 1: Write the proportion equation
726,863,442.30 : 1,090,295,163.45 = 338,557,218.30 : x - Step 2: Convert to fraction form
726,863,442.30/1,090,295,163.45 = 338,557,218.30/x - Step 3: Cross multiply
726,863,442.30x = 1,090,295,163.45 × 338,557,218.30 - Step 4: Simplify right side
726,863,442.30x = 369,127,297,663,575,872 - Step 5: Solve for x
x = 369,127,297,663,575,872/726,863,442.30 - Step 6: Final answer
x = 507,835,827.45
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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.