Finding the Fourth Proportional to 121,274,245.70, 181,911,368.55 and 60,668,101.70
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Solution
The fourth proportional to 121,274,245.70, 181,911,368.55 and 60,668,101.70 is: 91,002,152.55
Step by Step Solution
- Step 1: Write the proportion equation
121,274,245.70 : 181,911,368.55 = 60,668,101.70 : x - Step 2: Convert to fraction form
121,274,245.70/181,911,368.55 = 60,668,101.70/x - Step 3: Cross multiply
121,274,245.70x = 181,911,368.55 × 60,668,101.70 - Step 4: Simplify right side
121,274,245.70x = 11,036,217,407,577,582 - Step 5: Solve for x
x = 11,036,217,407,577,582/121,274,245.70 - Step 6: Final answer
x = 91,002,152.55
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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.