Finding the Fourth Proportional to 13,351,864.94, 18,424,587.44 and 7,470,718.49
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Solution
The fourth proportional to 13,351,864.94, 18,424,587.44 and 7,470,718.49 is: 10,309,039.73
Step by Step Solution
- Step 1: Write the proportion equation
13,351,864.94 : 18,424,587.44 = 7,470,718.49 : x - Step 2: Convert to fraction form
13,351,864.94/18,424,587.44 = 7,470,718.49/x - Step 3: Cross multiply
13,351,864.94x = 18,424,587.44 × 7,470,718.49 - Step 4: Simplify right side
13,351,864.94x = 137,644,906,123,368.02 - Step 5: Solve for x
x = 137,644,906,123,368.02/13,351,864.94 - Step 6: Final answer
x = 10,309,039.73
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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.