Finding the Fourth Proportional to 189,495,516.40, 284,243,274.60 and 115,837,793.80
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Solution
The fourth proportional to 189,495,516.40, 284,243,274.60 and 115,837,793.80 is: 173,756,690.70
Step by Step Solution
- Step 1: Write the proportion equation
189,495,516.40 : 284,243,274.60 = 115,837,793.80 : x - Step 2: Convert to fraction form
189,495,516.40/284,243,274.60 = 115,837,793.80/x - Step 3: Cross multiply
189,495,516.40x = 284,243,274.60 × 115,837,793.80 - Step 4: Simplify right side
189,495,516.40x = 32,926,113,832,151,580 - Step 5: Solve for x
x = 32,926,113,832,151,580/189,495,516.40 - Step 6: Final answer
x = 173,756,690.70
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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.