Finding the Fourth Proportional to 13,707,120.56, 18,924,424.80 and 8,820,832.88
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Solution
The fourth proportional to 13,707,120.56, 18,924,424.80 and 8,820,832.88 is: 12,178,282.65
Step by Step Solution
- Step 1: Write the proportion equation
13,707,120.56 : 18,924,424.80 = 8,820,832.88 : x - Step 2: Convert to fraction form
13,707,120.56/18,924,424.80 = 8,820,832.88/x - Step 3: Cross multiply
13,707,120.56x = 18,924,424.80 × 8,820,832.88 - Step 4: Simplify right side
13,707,120.56x = 166,929,188,510,927.44 - Step 5: Solve for x
x = 166,929,188,510,927.44/13,707,120.56 - Step 6: Final answer
x = 12,178,282.65
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.