Finding the Fourth Proportional to 268,588,742.70, 402,883,114.05 and 186,959,405.10
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Solution
The fourth proportional to 268,588,742.70, 402,883,114.05 and 186,959,405.10 is: 280,439,107.65
Step by Step Solution
- Step 1: Write the proportion equation
268,588,742.70 : 402,883,114.05 = 186,959,405.10 : x - Step 2: Convert to fraction form
268,588,742.70/402,883,114.05 = 186,959,405.10/x - Step 3: Cross multiply
268,588,742.70x = 402,883,114.05 × 186,959,405.10 - Step 4: Simplify right side
268,588,742.70x = 75,322,787,327,623,456 - Step 5: Solve for x
x = 75,322,787,327,623,456/268,588,742.70 - Step 6: Final answer
x = 280,439,107.65
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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.