Finding the Fourth Proportional to 290,400,673.70, 436,104,895.35 and 154,351,777.70
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Solution
The fourth proportional to 290,400,673.70, 436,104,895.35 and 154,351,777.70 is: 231,795,487.95
Step by Step Solution
- Step 1: Write the proportion equation
290,400,673.70 : 436,104,895.35 = 154,351,777.70 : x - Step 2: Convert to fraction form
290,400,673.70/436,104,895.35 = 154,351,777.70/x - Step 3: Cross multiply
290,400,673.70x = 436,104,895.35 × 154,351,777.70 - Step 4: Simplify right side
290,400,673.70x = 67,313,565,860,944,960 - Step 5: Solve for x
x = 67,313,565,860,944,960/290,400,673.70 - Step 6: Final answer
x = 231,795,487.95
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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.