Finding the Fourth Proportional to 78,544,410,599.61, 117,816,617,458.19 and 18,853,072,873.31
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Solution
The fourth proportional to 78,544,410,599.61, 117,816,617,458.19 and 18,853,072,873.31 is: 28,279,609,684.12
Step by Step Solution
- Step 1: Write the proportion equation
78,544,410,599.61 : 117,816,617,458.19 = 18,853,072,873.31 : x - Step 2: Convert to fraction form
78,544,410,599.61/117,816,617,458.19 = 18,853,072,873.31/x - Step 3: Cross multiply
78,544,410,599.61x = 117,816,617,458.19 × 18,853,072,873.31 - Step 4: Simplify right side
78,544,410,599.61x = 2,221,205,274,626,143,551,488 - Step 5: Solve for x
x = 2,221,205,274,626,143,551,488/78,544,410,599.61 - Step 6: Final answer
x = 28,279,609,684.12
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.