Finding the Fourth Proportional to 121,101,166.20, 181,651,749.30 and 99,577,805.70
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Solution
The fourth proportional to 121,101,166.20, 181,651,749.30 and 99,577,805.70 is: 149,366,708.55
Step by Step Solution
- Step 1: Write the proportion equation
121,101,166.20 : 181,651,749.30 = 99,577,805.70 : x - Step 2: Convert to fraction form
121,101,166.20/181,651,749.30 = 99,577,805.70/x - Step 3: Cross multiply
121,101,166.20x = 181,651,749.30 × 99,577,805.70 - Step 4: Simplify right side
121,101,166.20x = 18,088,482,596,860,512 - Step 5: Solve for x
x = 18,088,482,596,860,512/121,101,166.20 - Step 6: Final answer
x = 149,366,708.55
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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.