Finding the Fourth Proportional to 764,437,473.60, 1,146,656,210.40 and 419,257,723.20
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Solution
The fourth proportional to 764,437,473.60, 1,146,656,210.40 and 419,257,723.20 is: 628,886,584.80
Step by Step Solution
- Step 1: Write the proportion equation
764,437,473.60 : 1,146,656,210.40 = 419,257,723.20 : x - Step 2: Convert to fraction form
764,437,473.60/1,146,656,210.40 = 419,257,723.20/x - Step 3: Cross multiply
764,437,473.60x = 1,146,656,210.40 × 419,257,723.20 - Step 4: Simplify right side
764,437,473.60x = 480,744,472,065,444,160 - Step 5: Solve for x
x = 480,744,472,065,444,160/764,437,473.60 - Step 6: Final answer
x = 628,886,584.80
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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.