Finding the Fourth Proportional to 239,168,100.13, 330,051,975.48 and 129,159,813.13
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Solution
The fourth proportional to 239,168,100.13, 330,051,975.48 and 129,159,813.13 is: 178,240,540.66
Step by Step Solution
- Step 1: Write the proportion equation
239,168,100.13 : 330,051,975.48 = 129,159,813.13 : x - Step 2: Convert to fraction form
239,168,100.13/330,051,975.48 = 129,159,813.13/x - Step 3: Cross multiply
239,168,100.13x = 330,051,975.48 × 129,159,813.13 - Step 4: Simplify right side
239,168,100.13x = 42,629,451,476,184,144 - Step 5: Solve for x
x = 42,629,451,476,184,144/239,168,100.13 - Step 6: Final answer
x = 178,240,540.66
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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.