Finding the Fourth Proportional to 207,175,943.28, 285,902,829.72 and 114,356,475.12
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Solution
The fourth proportional to 207,175,943.28, 285,902,829.72 and 114,356,475.12 is: 157,811,951.12
Step by Step Solution
- Step 1: Write the proportion equation
207,175,943.28 : 285,902,829.72 = 114,356,475.12 : x - Step 2: Convert to fraction form
207,175,943.28/285,902,829.72 = 114,356,475.12/x - Step 3: Cross multiply
207,175,943.28x = 285,902,829.72 × 114,356,475.12 - Step 4: Simplify right side
207,175,943.28x = 32,694,839,833,612,780 - Step 5: Solve for x
x = 32,694,839,833,612,780/207,175,943.28 - Step 6: Final answer
x = 157,811,951.12
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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.