Finding the Fourth Proportional to 87,948,104.19, 121,368,526.79 and 48,789,881.88
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Solution
The fourth proportional to 87,948,104.19, 121,368,526.79 and 48,789,881.88 is: 67,330,116.33
Step by Step Solution
- Step 1: Write the proportion equation
87,948,104.19 : 121,368,526.79 = 48,789,881.88 : x - Step 2: Convert to fraction form
87,948,104.19/121,368,526.79 = 48,789,881.88/x - Step 3: Cross multiply
87,948,104.19x = 121,368,526.79 × 48,789,881.88 - Step 4: Simplify right side
87,948,104.19x = 5,921,556,085,789,766 - Step 5: Solve for x
x = 5,921,556,085,789,766/87,948,104.19 - Step 6: Final answer
x = 67,330,116.33
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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.