Finding the Fourth Proportional to 45,688,138.40, 68,532,207.60 and 43,672,599.20
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Solution
The fourth proportional to 45,688,138.40, 68,532,207.60 and 43,672,599.20 is: 65,508,898.80
Step by Step Solution
- Step 1: Write the proportion equation
45,688,138.40 : 68,532,207.60 = 43,672,599.20 : x - Step 2: Convert to fraction form
45,688,138.40/68,532,207.60 = 43,672,599.20/x - Step 3: Cross multiply
45,688,138.40x = 68,532,207.60 × 43,672,599.20 - Step 4: Simplify right side
45,688,138.40x = 2,992,979,634,805,994 - Step 5: Solve for x
x = 2,992,979,634,805,994/45,688,138.40 - Step 6: Final answer
x = 65,508,898.80
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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.