Finding the Fourth Proportional to 1,876,434,663.67, 2,589,472,729.68 and 1,029,676,153.42
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Solution
The fourth proportional to 1,876,434,663.67, 2,589,472,729.68 and 1,029,676,153.42 is: 1,420,949,192.27
Step by Step Solution
- Step 1: Write the proportion equation
1,876,434,663.67 : 2,589,472,729.68 = 1,029,676,153.42 : x - Step 2: Convert to fraction form
1,876,434,663.67/2,589,472,729.68 = 1,029,676,153.42/x - Step 3: Cross multiply
1,876,434,663.67x = 2,589,472,729.68 × 1,029,676,153.42 - Step 4: Simplify right side
1,876,434,663.67x = 2,666,318,319,682,889,728 - Step 5: Solve for x
x = 2,666,318,319,682,889,728/1,876,434,663.67 - Step 6: Final answer
x = 1,420,949,192.27
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.