Finding the Fourth Proportional to 5,361,761.99, 7,399,281.08 and 2,914,378.80
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Solution
The fourth proportional to 5,361,761.99, 7,399,281.08 and 2,914,378.80 is: 4,021,869.67
Step by Step Solution
- Step 1: Write the proportion equation
5,361,761.99 : 7,399,281.08 = 2,914,378.80 : x - Step 2: Convert to fraction form
5,361,761.99/7,399,281.08 = 2,914,378.80/x - Step 3: Cross multiply
5,361,761.99x = 7,399,281.08 × 2,914,378.80 - Step 4: Simplify right side
5,361,761.99x = 21,564,307,914,793.10 - Step 5: Solve for x
x = 21,564,307,914,793.10/5,361,761.99 - Step 6: Final answer
x = 4,021,869.67
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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.