Finding the Fourth Proportional to 13,563,179.91, 18,717,204.65 and 7,368,230.79
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Solution
The fourth proportional to 13,563,179.91, 18,717,204.65 and 7,368,230.79 is: 10,168,167.38
Step by Step Solution
- Step 1: Write the proportion equation
13,563,179.91 : 18,717,204.65 = 7,368,230.79 : x - Step 2: Convert to fraction form
13,563,179.91/18,717,204.65 = 7,368,230.79/x - Step 3: Cross multiply
13,563,179.91x = 18,717,204.65 × 7,368,230.79 - Step 4: Simplify right side
13,563,179.91x = 137,912,683,568,020.02 - Step 5: Solve for x
x = 137,912,683,568,020.02/13,563,179.91 - Step 6: Final answer
x = 10,168,167.38
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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.