Finding the Fourth Proportional to 19,401,766.40, 29,102,649.60 and 8,038,438.40
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Solution
The fourth proportional to 19,401,766.40, 29,102,649.60 and 8,038,438.40 is: 12,057,657.60
Step by Step Solution
- Step 1: Write the proportion equation
19,401,766.40 : 29,102,649.60 = 8,038,438.40 : x - Step 2: Convert to fraction form
19,401,766.40/29,102,649.60 = 8,038,438.40/x - Step 3: Cross multiply
19,401,766.40x = 29,102,649.60 × 8,038,438.40 - Step 4: Simplify right side
19,401,766.40x = 233,939,856,086,384.66 - Step 5: Solve for x
x = 233,939,856,086,384.66/19,401,766.40 - Step 6: Final answer
x = 12,057,657.60
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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.