Finding the Fourth Proportional to 7,129,339.20, 10,699,257.60 and 2,872,562.40
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Solution
The fourth proportional to 7,129,339.20, 10,699,257.60 and 2,872,562.40 is: 4,310,958.45
Step by Step Solution
- Step 1: Write the proportion equation
7,129,339.20 : 10,699,257.60 = 2,872,562.40 : x - Step 2: Convert to fraction form
7,129,339.20/10,699,257.60 = 2,872,562.40/x - Step 3: Cross multiply
7,129,339.20x = 10,699,257.60 × 2,872,562.40 - Step 4: Simplify right side
7,129,339.20x = 30,734,285,089,674.24 - Step 5: Solve for x
x = 30,734,285,089,674.24/7,129,339.20 - Step 6: Final answer
x = 4,310,958.45
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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.