Finding the Fourth Proportional to 268,272,129.40, 402,408,194.10 and 195,145,847.80
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Solution
The fourth proportional to 268,272,129.40, 402,408,194.10 and 195,145,847.80 is: 292,718,771.70
Step by Step Solution
- Step 1: Write the proportion equation
268,272,129.40 : 402,408,194.10 = 195,145,847.80 : x - Step 2: Convert to fraction form
268,272,129.40/402,408,194.10 = 195,145,847.80/x - Step 3: Cross multiply
268,272,129.40x = 402,408,194.10 × 195,145,847.80 - Step 4: Simplify right side
268,272,129.40x = 78,528,288,199,311,472 - Step 5: Solve for x
x = 78,528,288,199,311,472/268,272,129.40 - Step 6: Final answer
x = 292,718,771.70
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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.