Finding the Fourth Proportional to 15,519,486.76, 21,414,950.98 and 8,992,997.62
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Solution
The fourth proportional to 15,519,486.76, 21,414,950.98 and 8,992,997.62 is: 12,409,212.12
Step by Step Solution
- Step 1: Write the proportion equation
15,519,486.76 : 21,414,950.98 = 8,992,997.62 : x - Step 2: Convert to fraction form
15,519,486.76/21,414,950.98 = 8,992,997.62/x - Step 3: Cross multiply
15,519,486.76x = 21,414,950.98 × 8,992,997.62 - Step 4: Simplify right side
15,519,486.76x = 192,584,603,195,556.66 - Step 5: Solve for x
x = 192,584,603,195,556.66/15,519,486.76 - Step 6: Final answer
x = 12,409,212.12
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1.5x scale
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.