Finding the Fourth Proportional to 118,239,423.60, 177,491,845.80 and 91,431,922.80
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Solution
The fourth proportional to 118,239,423.60, 177,491,845.80 and 91,431,922.80 is: 137,250,506.21
Step by Step Solution
- Step 1: Write the proportion equation
118,239,423.60 : 177,491,845.80 = 91,431,922.80 : x - Step 2: Convert to fraction form
118,239,423.60/177,491,845.80 = 91,431,922.80/x - Step 3: Cross multiply
118,239,423.60x = 177,491,845.80 × 91,431,922.80 - Step 4: Simplify right side
118,239,423.60x = 16,228,420,742,815,104 - Step 5: Solve for x
x = 16,228,420,742,815,104/118,239,423.60 - Step 6: Final answer
x = 137,250,506.21
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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.