Finding the Fourth Proportional to 711,863,973.80, 1,067,405,839.76 and 220,440,813.08
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Solution
The fourth proportional to 711,863,973.80, 1,067,405,839.76 and 220,440,813.08 is: 330,540,412.02
Step by Step Solution
- Step 1: Write the proportion equation
711,863,973.80 : 1,067,405,839.76 = 220,440,813.08 : x - Step 2: Convert to fraction form
711,863,973.80/1,067,405,839.76 = 220,440,813.08/x - Step 3: Cross multiply
711,863,973.80x = 1,067,405,839.76 × 220,440,813.08 - Step 4: Simplify right side
711,863,973.80x = 235,299,811,203,034,592 - Step 5: Solve for x
x = 235,299,811,203,034,592/711,863,973.80 - Step 6: Final answer
x = 330,540,412.02
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1.5x scale
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.