Finding the Fourth Proportional to 6,898,207,958.40, 10,347,311,937.60 and 1,991,041,852.80
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Solution
The fourth proportional to 6,898,207,958.40, 10,347,311,937.60 and 1,991,041,852.80 is: 2,986,562,779.20
Step by Step Solution
- Step 1: Write the proportion equation
6,898,207,958.40 : 10,347,311,937.60 = 1,991,041,852.80 : x - Step 2: Convert to fraction form
6,898,207,958.40/10,347,311,937.60 = 1,991,041,852.80/x - Step 3: Cross multiply
6,898,207,958.40x = 10,347,311,937.60 × 1,991,041,852.80 - Step 4: Simplify right side
6,898,207,958.40x = 20,601,931,131,738,660,864 - Step 5: Solve for x
x = 20,601,931,131,738,660,864/6,898,207,958.40 - Step 6: Final answer
x = 2,986,562,779.20
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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.