Finding the Fourth Proportional to 660,768,674.40, 990,260,163.99 and 251,601,619.68
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Solution
The fourth proportional to 660,768,674.40, 990,260,163.99 and 251,601,619.68 is: 377,062,458.95
Step by Step Solution
- Step 1: Write the proportion equation
660,768,674.40 : 990,260,163.99 = 251,601,619.68 : x - Step 2: Convert to fraction form
660,768,674.40/990,260,163.99 = 251,601,619.68/x - Step 3: Cross multiply
660,768,674.40x = 990,260,163.99 × 251,601,619.68 - Step 4: Simplify right side
660,768,674.40x = 249,151,061,164,466,432 - Step 5: Solve for x
x = 249,151,061,164,466,432/660,768,674.40 - Step 6: Final answer
x = 377,062,458.95
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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.