Finding the Fourth Proportional to 77,330,330.80, 115,991,809.80 and 26,207,335.60
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Solution
The fourth proportional to 77,330,330.80, 115,991,809.80 and 26,207,335.60 is: 39,309,754.07
Step by Step Solution
- Step 1: Write the proportion equation
77,330,330.80 : 115,991,809.80 = 26,207,335.60 : x - Step 2: Convert to fraction form
77,330,330.80/115,991,809.80 = 26,207,335.60/x - Step 3: Cross multiply
77,330,330.80x = 115,991,809.80 × 26,207,335.60 - Step 4: Simplify right side
77,330,330.80x = 3,039,836,286,279,969 - Step 5: Solve for x
x = 3,039,836,286,279,969/77,330,330.80 - Step 6: Final answer
x = 39,309,754.07
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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.