Finding the Fourth Proportional to 13,122,080.80, 19,683,121.20 and 11,704,904.80
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Solution
The fourth proportional to 13,122,080.80, 19,683,121.20 and 11,704,904.80 is: 17,557,357.20
Step by Step Solution
- Step 1: Write the proportion equation
13,122,080.80 : 19,683,121.20 = 11,704,904.80 : x - Step 2: Convert to fraction form
13,122,080.80/19,683,121.20 = 11,704,904.80/x - Step 3: Cross multiply
13,122,080.80x = 19,683,121.20 × 11,704,904.80 - Step 4: Simplify right side
13,122,080.80x = 230,389,059,812,861.78 - Step 5: Solve for x
x = 230,389,059,812,861.78/13,122,080.80 - Step 6: Final answer
x = 17,557,357.20
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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.