Finding the Fourth Proportional to 819,369,178.27, 1,228,730,252.69 and 327,990,858.05
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Solution
The fourth proportional to 819,369,178.27, 1,228,730,252.69 and 327,990,858.05 is: 491,856,785.18
Step by Step Solution
- Step 1: Write the proportion equation
819,369,178.27 : 1,228,730,252.69 = 327,990,858.05 : x - Step 2: Convert to fraction form
819,369,178.27/1,228,730,252.69 = 327,990,858.05/x - Step 3: Cross multiply
819,369,178.27x = 1,228,730,252.69 × 327,990,858.05 - Step 4: Simplify right side
819,369,178.27x = 403,012,289,895,678,272 - Step 5: Solve for x
x = 403,012,289,895,678,272/819,369,178.27 - Step 6: Final answer
x = 491,856,785.18
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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.