Finding the Fourth Proportional to 649,517,621.20, 974,276,431.80 and 585,020,366.80
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Solution
The fourth proportional to 649,517,621.20, 974,276,431.80 and 585,020,366.80 is: 877,530,550.20
Step by Step Solution
- Step 1: Write the proportion equation
649,517,621.20 : 974,276,431.80 = 585,020,366.80 : x - Step 2: Convert to fraction form
649,517,621.20/974,276,431.80 = 585,020,366.80/x - Step 3: Cross multiply
649,517,621.20x = 974,276,431.80 × 585,020,366.80 - Step 4: Simplify right side
649,517,621.20x = 569,971,555,496,231,104 - Step 5: Solve for x
x = 569,971,555,496,231,104/649,517,621.20 - Step 6: Final answer
x = 877,530,550.20
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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.