Finding the Fourth Proportional to 993,494,287.20, 1,490,241,430.80 and 986,691,842.40
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Solution
The fourth proportional to 993,494,287.20, 1,490,241,430.80 and 986,691,842.40 is: 1,480,037,763.60
Step by Step Solution
- Step 1: Write the proportion equation
993,494,287.20 : 1,490,241,430.80 = 986,691,842.40 : x - Step 2: Convert to fraction form
993,494,287.20/1,490,241,430.80 = 986,691,842.40/x - Step 3: Cross multiply
993,494,287.20x = 1,490,241,430.80 × 986,691,842.40 - Step 4: Simplify right side
993,494,287.20x = 1,470,409,062,976,864,000 - Step 5: Solve for x
x = 1,470,409,062,976,864,000/993,494,287.20 - Step 6: Final answer
x = 1,480,037,763.60
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Similar ratio
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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.