Finding the Fourth Proportional to 285,768,021.80, 428,652,032.70 and 283,752,482.60
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Solution
The fourth proportional to 285,768,021.80, 428,652,032.70 and 283,752,482.60 is: 425,628,723.90
Step by Step Solution
- Step 1: Write the proportion equation
285,768,021.80 : 428,652,032.70 = 283,752,482.60 : x - Step 2: Convert to fraction form
285,768,021.80/428,652,032.70 = 283,752,482.60/x - Step 3: Cross multiply
285,768,021.80x = 428,652,032.70 × 283,752,482.60 - Step 4: Simplify right side
285,768,021.80x = 121,631,078,450,161,392 - Step 5: Solve for x
x = 121,631,078,450,161,392/285,768,021.80 - Step 6: Final answer
x = 425,628,723.90
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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.