Finding the Fourth Proportional to 13,843,123.05, 19,104,625.12 and 7,648,711.23
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Solution
The fourth proportional to 13,843,123.05, 19,104,625.12 and 7,648,711.23 is: 10,555,837.74
Step by Step Solution
- Step 1: Write the proportion equation
13,843,123.05 : 19,104,625.12 = 7,648,711.23 : x - Step 2: Convert to fraction form
13,843,123.05/19,104,625.12 = 7,648,711.23/x - Step 3: Cross multiply
13,843,123.05x = 19,104,625.12 × 7,648,711.23 - Step 4: Simplify right side
13,843,123.05x = 146,125,760,767,146 - Step 5: Solve for x
x = 146,125,760,767,146/13,843,123.05 - Step 6: Final answer
x = 10,555,837.74
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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.