Finding the Fourth Proportional to 10,660,671.20, 15,990,015.36 and 2,985,010.76
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Solution
The fourth proportional to 10,660,671.20, 15,990,015.36 and 2,985,010.76 is: 4,477,238.53
Step by Step Solution
- Step 1: Write the proportion equation
10,660,671.20 : 15,990,015.36 = 2,985,010.76 : x - Step 2: Convert to fraction form
10,660,671.20/15,990,015.36 = 2,985,010.76/x - Step 3: Cross multiply
10,660,671.20x = 15,990,015.36 × 2,985,010.76 - Step 4: Simplify right side
10,660,671.20x = 47,730,367,902,165.27 - Step 5: Solve for x
x = 47,730,367,902,165.27/10,660,671.20 - Step 6: Final answer
x = 4,477,238.53
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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.