Finding the Fourth Proportional to 118,736,217.40, 178,104,326.10 and 91,829,183.80
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Solution
The fourth proportional to 118,736,217.40, 178,104,326.10 and 91,829,183.80 is: 137,743,775.70
Step by Step Solution
- Step 1: Write the proportion equation
118,736,217.40 : 178,104,326.10 = 91,829,183.80 : x - Step 2: Convert to fraction form
118,736,217.40/178,104,326.10 = 91,829,183.80/x - Step 3: Cross multiply
118,736,217.40x = 178,104,326.10 × 91,829,183.80 - Step 4: Simplify right side
118,736,217.40x = 16,355,174,897,012,036 - Step 5: Solve for x
x = 16,355,174,897,012,036/118,736,217.40 - Step 6: Final answer
x = 137,743,775.70
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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.