Finding the Fourth Proportional to 30,012,371.66, 41,401,096.49 and 18,255,235.99
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Solution
The fourth proportional to 30,012,371.66, 41,401,096.49 and 18,255,235.99 is: 25,182,507.91
Step by Step Solution
- Step 1: Write the proportion equation
30,012,371.66 : 41,401,096.49 = 18,255,235.99 : x - Step 2: Convert to fraction form
30,012,371.66/41,401,096.49 = 18,255,235.99/x - Step 3: Cross multiply
30,012,371.66x = 41,401,096.49 × 18,255,235.99 - Step 4: Simplify right side
30,012,371.66x = 755,786,786,689,473 - Step 5: Solve for x
x = 755,786,786,689,473/30,012,371.66 - Step 6: Final answer
x = 25,182,507.91
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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.