Finding the Fourth Proportional to 8,750,437.20, 13,125,655.80 and 8,218,558.80
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Solution
The fourth proportional to 8,750,437.20, 13,125,655.80 and 8,218,558.80 is: 12,327,838.20
Step by Step Solution
- Step 1: Write the proportion equation
8,750,437.20 : 13,125,655.80 = 8,218,558.80 : x - Step 2: Convert to fraction form
8,750,437.20/13,125,655.80 = 8,218,558.80/x - Step 3: Cross multiply
8,750,437.20x = 13,125,655.80 × 8,218,558.80 - Step 4: Simplify right side
8,750,437.20x = 107,873,973,980,861.05 - Step 5: Solve for x
x = 107,873,973,980,861.05/8,750,437.20 - Step 6: Final answer
x = 12,327,838.20
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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.