Finding the Fourth Proportional to 304,721,354.36, 420,517,940.21 and 165,493,112.58
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Solution
The fourth proportional to 304,721,354.36, 420,517,940.21 and 165,493,112.58 is: 228,381,837.45
Step by Step Solution
- Step 1: Write the proportion equation
304,721,354.36 : 420,517,940.21 = 165,493,112.58 : x - Step 2: Convert to fraction form
304,721,354.36/420,517,940.21 = 165,493,112.58/x - Step 3: Cross multiply
304,721,354.36x = 420,517,940.21 × 165,493,112.58 - Step 4: Simplify right side
304,721,354.36x = 69,592,822,820,876,376 - Step 5: Solve for x
x = 69,592,822,820,876,376/304,721,354.36 - Step 6: Final answer
x = 228,381,837.45
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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.