Finding the Fourth Proportional to 768,273,369.16, 1,060,318,175.70 and 438,172,837.96
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Solution
The fourth proportional to 768,273,369.16, 1,060,318,175.70 and 438,172,837.96 is: 604,736,078.12
Step by Step Solution
- Step 1: Write the proportion equation
768,273,369.16 : 1,060,318,175.70 = 438,172,837.96 : x - Step 2: Convert to fraction form
768,273,369.16/1,060,318,175.70 = 438,172,837.96/x - Step 3: Cross multiply
768,273,369.16x = 1,060,318,175.70 × 438,172,837.96 - Step 4: Simplify right side
768,273,369.16x = 464,602,624,187,038,912 - Step 5: Solve for x
x = 464,602,624,187,038,912/768,273,369.16 - Step 6: Final answer
x = 604,736,078.12
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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.