Finding the Fourth Proportional to 18,847,478.79, 28,267,852.76 and 5,014,517.03
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Solution
The fourth proportional to 18,847,478.79, 28,267,852.76 and 5,014,517.03 is: 7,520,880.14
Step by Step Solution
- Step 1: Write the proportion equation
18,847,478.79 : 28,267,852.76 = 5,014,517.03 : x - Step 2: Convert to fraction form
18,847,478.79/28,267,852.76 = 5,014,517.03/x - Step 3: Cross multiply
18,847,478.79x = 28,267,852.76 × 5,014,517.03 - Step 4: Simplify right side
18,847,478.79x = 141,749,628,937,749.53 - Step 5: Solve for x
x = 141,749,628,937,749.53/18,847,478.79 - Step 6: Final answer
x = 7,520,880.14
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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.