Finding the Fourth Proportional to 86,319,652.12, 129,530,544.60 and 31,770,550.48
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Solution
The fourth proportional to 86,319,652.12, 129,530,544.60 and 31,770,550.48 is: 47,674,621.07
Step by Step Solution
- Step 1: Write the proportion equation
86,319,652.12 : 129,530,544.60 = 31,770,550.48 : x - Step 2: Convert to fraction form
86,319,652.12/129,530,544.60 = 31,770,550.48/x - Step 3: Cross multiply
86,319,652.12x = 129,530,544.60 × 31,770,550.48 - Step 4: Simplify right side
86,319,652.12x = 4,115,256,705,916,191.50 - Step 5: Solve for x
x = 4,115,256,705,916,191.50/86,319,652.12 - Step 6: Final answer
x = 47,674,621.07
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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.