Finding the Fourth Proportional to 660,768,675.40, 990,260,165.49 and 251,601,620.68
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Solution
The fourth proportional to 660,768,675.40, 990,260,165.49 and 251,601,620.68 is: 377,062,460.45
Step by Step Solution
- Step 1: Write the proportion equation
660,768,675.40 : 990,260,165.49 = 251,601,620.68 : x - Step 2: Convert to fraction form
660,768,675.40/990,260,165.49 = 251,601,620.68/x - Step 3: Cross multiply
660,768,675.40x = 990,260,165.49 × 251,601,620.68 - Step 4: Simplify right side
660,768,675.40x = 249,151,062,532,129,024 - Step 5: Solve for x
x = 249,151,062,532,129,024/660,768,675.40 - Step 6: Final answer
x = 377,062,460.45
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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.