Finding the Fourth Proportional to 10,929,618.80, 16,394,428.20 and 5,248,473.20
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Solution
The fourth proportional to 10,929,618.80, 16,394,428.20 and 5,248,473.20 is: 7,872,709.80
Step by Step Solution
- Step 1: Write the proportion equation
10,929,618.80 : 16,394,428.20 = 5,248,473.20 : x - Step 2: Convert to fraction form
10,929,618.80/16,394,428.20 = 5,248,473.20/x - Step 3: Cross multiply
10,929,618.80x = 16,394,428.20 × 5,248,473.20 - Step 4: Simplify right side
10,929,618.80x = 86,045,717,037,024.23 - Step 5: Solve for x
x = 86,045,717,037,024.23/10,929,618.80 - Step 6: Final answer
x = 7,872,709.80
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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.