Finding the Fourth Proportional to 489,435,356.93, 675,437,107.29 and 274,891,809.50
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Solution
The fourth proportional to 489,435,356.93, 675,437,107.29 and 274,891,809.50 is: 379,359,860.30
Step by Step Solution
- Step 1: Write the proportion equation
489,435,356.93 : 675,437,107.29 = 274,891,809.50 : x - Step 2: Convert to fraction form
489,435,356.93/675,437,107.29 = 274,891,809.50/x - Step 3: Cross multiply
489,435,356.93x = 675,437,107.29 × 274,891,809.50 - Step 4: Simplify right side
489,435,356.93x = 185,672,128,628,082,336 - Step 5: Solve for x
x = 185,672,128,628,082,336/489,435,356.93 - Step 6: Final answer
x = 379,359,860.30
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.