Finding the Fourth Proportional to 274,481,953.98, 378,791,678.01 and 149,039,436.63
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Solution
The fourth proportional to 274,481,953.98, 378,791,678.01 and 149,039,436.63 is: 205,677,996.21
Step by Step Solution
- Step 1: Write the proportion equation
274,481,953.98 : 378,791,678.01 = 149,039,436.63 : x - Step 2: Convert to fraction form
274,481,953.98/378,791,678.01 = 149,039,436.63/x - Step 3: Cross multiply
274,481,953.98x = 378,791,678.01 × 149,039,436.63 - Step 4: Simplify right side
274,481,953.98x = 56,454,898,290,742,760 - Step 5: Solve for x
x = 56,454,898,290,742,760/274,481,953.98 - Step 6: Final answer
x = 205,677,996.21
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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.