Finding the Fourth Proportional to 6,318,379,829.86, 8,719,638,251.62 and 3,498,987,755.90
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Solution
The fourth proportional to 6,318,379,829.86, 8,719,638,251.62 and 3,498,987,755.90 is: 4,828,754,886.52
Step by Step Solution
- Step 1: Write the proportion equation
6,318,379,829.86 : 8,719,638,251.62 = 3,498,987,755.90 : x - Step 2: Convert to fraction form
6,318,379,829.86/8,719,638,251.62 = 3,498,987,755.90/x - Step 3: Cross multiply
6,318,379,829.86x = 8,719,638,251.62 × 3,498,987,755.90 - Step 4: Simplify right side
6,318,379,829.86x = 30,509,907,478,295,666,688 - Step 5: Solve for x
x = 30,509,907,478,295,666,688/6,318,379,829.86 - Step 6: Final answer
x = 4,828,754,886.52
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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.