Finding the Fourth Proportional to 121,274,277.20, 181,911,415.80 and 60,668,133.20
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Solution
The fourth proportional to 121,274,277.20, 181,911,415.80 and 60,668,133.20 is: 91,002,199.80
Step by Step Solution
- Step 1: Write the proportion equation
121,274,277.20 : 181,911,415.80 = 60,668,133.20 : x - Step 2: Convert to fraction form
121,274,277.20/181,911,415.80 = 60,668,133.20/x - Step 3: Cross multiply
121,274,277.20x = 181,911,415.80 × 60,668,133.20 - Step 4: Simplify right side
121,274,277.20x = 11,036,226,004,354,986 - Step 5: Solve for x
x = 11,036,226,004,354,986/121,274,277.20 - Step 6: Final answer
x = 91,002,199.80
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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.