Finding the Fourth Proportional to 18,965,280.24, 28,456,556.58 and 8,038,464.48
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Solution
The fourth proportional to 18,965,280.24, 28,456,556.58 and 8,038,464.48 is: 12,061,357.20
Step by Step Solution
- Step 1: Write the proportion equation
18,965,280.24 : 28,456,556.58 = 8,038,464.48 : x - Step 2: Convert to fraction form
18,965,280.24/28,456,556.58 = 8,038,464.48/x - Step 3: Cross multiply
18,965,280.24x = 28,456,556.58 × 8,038,464.48 - Step 4: Simplify right side
18,965,280.24x = 228,747,019,291,440.28 - Step 5: Solve for x
x = 228,747,019,291,440.28/18,965,280.24 - Step 6: Final answer
x = 12,061,357.20
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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.