Finding the Fourth Proportional to 129,486,848.70, 194,230,273.05 and 123,514,880.70
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Solution
The fourth proportional to 129,486,848.70, 194,230,273.05 and 123,514,880.70 is: 185,272,321.05
Step by Step Solution
- Step 1: Write the proportion equation
129,486,848.70 : 194,230,273.05 = 123,514,880.70 : x - Step 2: Convert to fraction form
129,486,848.70/194,230,273.05 = 123,514,880.70/x - Step 3: Cross multiply
129,486,848.70x = 194,230,273.05 × 123,514,880.70 - Step 4: Simplify right side
129,486,848.70x = 23,990,329,004,099,176 - Step 5: Solve for x
x = 23,990,329,004,099,176/129,486,848.70 - Step 6: Final answer
x = 185,272,321.05
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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.