Finding the Fourth Proportional to 207,523,321.92, 286,377,189.12 and 113,433,245.28
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Solution
The fourth proportional to 207,523,321.92, 286,377,189.12 and 113,433,245.28 is: 156,535,148.12
Step by Step Solution
- Step 1: Write the proportion equation
207,523,321.92 : 286,377,189.12 = 113,433,245.28 : x - Step 2: Convert to fraction form
207,523,321.92/286,377,189.12 = 113,433,245.28/x - Step 3: Cross multiply
207,523,321.92x = 286,377,189.12 × 113,433,245.28 - Step 4: Simplify right side
207,523,321.92x = 32,484,693,936,045,908 - Step 5: Solve for x
x = 32,484,693,936,045,908/207,523,321.92 - Step 6: Final answer
x = 156,535,148.12
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.