Finding the Fourth Proportional to 10,515,631.20, 15,761,005.20 and 4,450,351.20
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Solution
The fourth proportional to 10,515,631.20, 15,761,005.20 and 4,450,351.20 is: 6,670,261.35
Step by Step Solution
- Step 1: Write the proportion equation
10,515,631.20 : 15,761,005.20 = 4,450,351.20 : x - Step 2: Convert to fraction form
10,515,631.20/15,761,005.20 = 4,450,351.20/x - Step 3: Cross multiply
10,515,631.20x = 15,761,005.20 × 4,450,351.20 - Step 4: Simplify right side
10,515,631.20x = 70,142,008,405,026.24 - Step 5: Solve for x
x = 70,142,008,405,026.24/10,515,631.20 - Step 6: Final answer
x = 6,670,261.35
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.