Finding the Fourth Proportional to 87,106,330.85, 130,750,294.23 and 38,618,236.40
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Solution
The fourth proportional to 87,106,330.85, 130,750,294.23 and 38,618,236.40 is: 57,967,609.50
Step by Step Solution
- Step 1: Write the proportion equation
87,106,330.85 : 130,750,294.23 = 38,618,236.40 : x - Step 2: Convert to fraction form
87,106,330.85/130,750,294.23 = 38,618,236.40/x - Step 3: Cross multiply
87,106,330.85x = 130,750,294.23 × 38,618,236.40 - Step 4: Simplify right side
87,106,330.85x = 5,049,345,771,289,945 - Step 5: Solve for x
x = 5,049,345,771,289,945/87,106,330.85 - Step 6: Final answer
x = 57,967,609.50
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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.