Finding the Fourth Proportional to 121,386,201.70, 182,079,302.55 and 39,512,794.90
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Solution
The fourth proportional to 121,386,201.70, 182,079,302.55 and 39,512,794.90 is: 59,269,192.35
Step by Step Solution
- Step 1: Write the proportion equation
121,386,201.70 : 182,079,302.55 = 39,512,794.90 : x - Step 2: Convert to fraction form
121,386,201.70/182,079,302.55 = 39,512,794.90/x - Step 3: Cross multiply
121,386,201.70x = 182,079,302.55 × 39,512,794.90 - Step 4: Simplify right side
121,386,201.70x = 7,194,462,137,193,197 - Step 5: Solve for x
x = 7,194,462,137,193,197/121,386,201.70 - Step 6: Final answer
x = 59,269,192.35
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1.5x scale
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.