Finding the Fourth Proportional to 1,324,379,672.40, 1,986,503,470.80 and 495,272,360.08
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Solution
The fourth proportional to 1,324,379,672.40, 1,986,503,470.80 and 495,272,360.08 is: 742,883,844.26
Step by Step Solution
- Step 1: Write the proportion equation
1,324,379,672.40 : 1,986,503,470.80 = 495,272,360.08 : x - Step 2: Convert to fraction form
1,324,379,672.40/1,986,503,470.80 = 495,272,360.08/x - Step 3: Cross multiply
1,324,379,672.40x = 1,986,503,470.80 × 495,272,360.08 - Step 4: Simplify right side
1,324,379,672.40x = 983,860,262,290,227,328 - Step 5: Solve for x
x = 983,860,262,290,227,328/1,324,379,672.40 - Step 6: Final answer
x = 742,883,844.26
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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.