Finding the Fourth Proportional to 19,310,349.20, 28,932,346.20 and 10,198,950.80
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Solution
The fourth proportional to 19,310,349.20, 28,932,346.20 and 10,198,950.80 is: 15,280,903.12
Step by Step Solution
- Step 1: Write the proportion equation
19,310,349.20 : 28,932,346.20 = 10,198,950.80 : x - Step 2: Convert to fraction form
19,310,349.20/28,932,346.20 = 10,198,950.80/x - Step 3: Cross multiply
19,310,349.20x = 28,932,346.20 × 10,198,950.80 - Step 4: Simplify right side
19,310,349.20x = 295,079,575,422,367 - Step 5: Solve for x
x = 295,079,575,422,367/19,310,349.20 - Step 6: Final answer
x = 15,280,903.12
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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.