Finding the Fourth Proportional to 239,848,255.05, 330,991,648.29 and 129,839,968.05
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Solution
The fourth proportional to 239,848,255.05, 330,991,648.29 and 129,839,968.05 is: 179,179,727.74
Step by Step Solution
- Step 1: Write the proportion equation
239,848,255.05 : 330,991,648.29 = 129,839,968.05 : x - Step 2: Convert to fraction form
239,848,255.05/330,991,648.29 = 129,839,968.05/x - Step 3: Cross multiply
239,848,255.05x = 330,991,648.29 × 129,839,968.05 - Step 4: Simplify right side
239,848,255.05x = 42,975,945,038,790,440 - Step 5: Solve for x
x = 42,975,945,038,790,440/239,848,255.05 - Step 6: Final answer
x = 179,179,727.74
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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.