Finding the Fourth Proportional to 660,194,857.80, 990,292,286.70 and 297,397,801.80
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Solution
The fourth proportional to 660,194,857.80, 990,292,286.70 and 297,397,801.80 is: 446,096,702.70
Step by Step Solution
- Step 1: Write the proportion equation
660,194,857.80 : 990,292,286.70 = 297,397,801.80 : x - Step 2: Convert to fraction form
660,194,857.80/990,292,286.70 = 297,397,801.80/x - Step 3: Cross multiply
660,194,857.80x = 990,292,286.70 × 297,397,801.80 - Step 4: Simplify right side
660,194,857.80x = 294,510,749,204,075,392 - Step 5: Solve for x
x = 294,510,749,204,075,392/660,194,857.80 - Step 6: Final answer
x = 446,096,702.70
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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.