Finding the Fourth Proportional to 10,780,423.80, 16,170,635.70 and 9,717,541.80
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Solution
The fourth proportional to 10,780,423.80, 16,170,635.70 and 9,717,541.80 is: 14,576,312.70
Step by Step Solution
- Step 1: Write the proportion equation
10,780,423.80 : 16,170,635.70 = 9,717,541.80 : x - Step 2: Convert to fraction form
10,780,423.80/16,170,635.70 = 9,717,541.80/x - Step 3: Cross multiply
10,780,423.80x = 16,170,635.70 × 9,717,541.80 - Step 4: Simplify right side
10,780,423.80x = 157,138,828,347,322.25 - Step 5: Solve for x
x = 157,138,828,347,322.25/10,780,423.80 - Step 6: Final answer
x = 14,576,312.70
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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.