Finding the Fourth Proportional to 142,711,808.80, 214,067,713.20 and 126,272,567.20
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Solution
The fourth proportional to 142,711,808.80, 214,067,713.20 and 126,272,567.20 is: 189,408,850.80
Step by Step Solution
- Step 1: Write the proportion equation
142,711,808.80 : 214,067,713.20 = 126,272,567.20 : x - Step 2: Convert to fraction form
142,711,808.80/214,067,713.20 = 126,272,567.20/x - Step 3: Cross multiply
142,711,808.80x = 214,067,713.20 × 126,272,567.20 - Step 4: Simplify right side
142,711,808.80x = 27,030,879,700,397,328 - Step 5: Solve for x
x = 27,030,879,700,397,328/142,711,808.80 - Step 6: Final answer
x = 189,408,850.80
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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.