Finding the Fourth Proportional to 218,901,747.93, 302,071,120.15 and 124,802,737.75
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Solution
The fourth proportional to 218,901,747.93, 302,071,120.15 and 124,802,737.75 is: 172,220,199.91
Step by Step Solution
- Step 1: Write the proportion equation
218,901,747.93 : 302,071,120.15 = 124,802,737.75 : x - Step 2: Convert to fraction form
218,901,747.93/302,071,120.15 = 124,802,737.75/x - Step 3: Cross multiply
218,901,747.93x = 302,071,120.15 × 124,802,737.75 - Step 4: Simplify right side
218,901,747.93x = 37,699,302,789,929,184 - Step 5: Solve for x
x = 37,699,302,789,929,184/218,901,747.93 - Step 6: Final answer
x = 172,220,199.91
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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.