Finding the Fourth Proportional to 10,369,039.20, 15,553,558.80 and 9,487,240.80
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Solution
The fourth proportional to 10,369,039.20, 15,553,558.80 and 9,487,240.80 is: 14,230,861.20
Step by Step Solution
- Step 1: Write the proportion equation
10,369,039.20 : 15,553,558.80 = 9,487,240.80 : x - Step 2: Convert to fraction form
10,369,039.20/15,553,558.80 = 9,487,240.80/x - Step 3: Cross multiply
10,369,039.20x = 15,553,558.80 × 9,487,240.80 - Step 4: Simplify right side
10,369,039.20x = 147,560,357,632,559.06 - Step 5: Solve for x
x = 147,560,357,632,559.06/10,369,039.20 - Step 6: Final answer
x = 14,230,861.20
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1.5x scale
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.