Finding the Fourth Proportional to 118,894,489.20, 178,341,733.80 and 54,324,407.70
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Solution
The fourth proportional to 118,894,489.20, 178,341,733.80 and 54,324,407.70 is: 81,486,611.55
Step by Step Solution
- Step 1: Write the proportion equation
118,894,489.20 : 178,341,733.80 = 54,324,407.70 : x - Step 2: Convert to fraction form
118,894,489.20/178,341,733.80 = 54,324,407.70/x - Step 3: Cross multiply
118,894,489.20x = 178,341,733.80 × 54,324,407.70 - Step 4: Simplify right side
118,894,489.20x = 9,688,309,056,876,072 - Step 5: Solve for x
x = 9,688,309,056,876,072/118,894,489.20 - Step 6: Final answer
x = 81,486,611.55
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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.