Finding the Fourth Proportional to 19,571,420.40, 29,361,796.20 and 9,465,730.80
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Solution
The fourth proportional to 19,571,420.40, 29,361,796.20 and 9,465,730.80 is: 14,200,852.72
Step by Step Solution
- Step 1: Write the proportion equation
19,571,420.40 : 29,361,796.20 = 9,465,730.80 : x - Step 2: Convert to fraction form
19,571,420.40/29,361,796.20 = 9,465,730.80/x - Step 3: Cross multiply
19,571,420.40x = 29,361,796.20 × 9,465,730.80 - Step 4: Simplify right side
19,571,420.40x = 277,930,858,633,662.97 - Step 5: Solve for x
x = 277,930,858,633,662.97/19,571,420.40 - Step 6: Final answer
x = 14,200,852.72
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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.