Finding the Fourth Proportional to 1,324,379,625.43, 1,986,503,400.32 and 495,272,312.99
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Solution
The fourth proportional to 1,324,379,625.43, 1,986,503,400.32 and 495,272,312.99 is: 742,883,773.62
Step by Step Solution
- Step 1: Write the proportion equation
1,324,379,625.43 : 1,986,503,400.32 = 495,272,312.99 : x - Step 2: Convert to fraction form
1,324,379,625.43/1,986,503,400.32 = 495,272,312.99/x - Step 3: Cross multiply
1,324,379,625.43x = 1,986,503,400.32 × 495,272,312.99 - Step 4: Simplify right side
1,324,379,625.43x = 983,860,133,838,986,240 - Step 5: Solve for x
x = 983,860,133,838,986,240/1,324,379,625.43 - Step 6: Final answer
x = 742,883,773.62
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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.