Finding the Fourth Proportional to 10,315,338.20, 14,235,235.02 and 6,450,121.88
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Solution
The fourth proportional to 10,315,338.20, 14,235,235.02 and 6,450,121.88 is: 8,901,210.90
Step by Step Solution
- Step 1: Write the proportion equation
10,315,338.20 : 14,235,235.02 = 6,450,121.88 : x - Step 2: Convert to fraction form
10,315,338.20/14,235,235.02 = 6,450,121.88/x - Step 3: Cross multiply
10,315,338.20x = 14,235,235.02 × 6,450,121.88 - Step 4: Simplify right side
10,315,338.20x = 91,819,000,869,444.23 - Step 5: Solve for x
x = 91,819,000,869,444.23/10,315,338.20 - Step 6: Final answer
x = 8,901,210.90
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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.