Finding the Fourth Proportional to 13,310,416.56, 18,368,387.12 and 7,198,845.08
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Solution
The fourth proportional to 13,310,416.56, 18,368,387.12 and 7,198,845.08 is: 9,934,412.85
Step by Step Solution
- Step 1: Write the proportion equation
13,310,416.56 : 18,368,387.12 = 7,198,845.08 : x - Step 2: Convert to fraction form
13,310,416.56/18,368,387.12 = 7,198,845.08/x - Step 3: Cross multiply
13,310,416.56x = 18,368,387.12 × 7,198,845.08 - Step 4: Simplify right side
13,310,416.56x = 132,231,173,246,347.38 - Step 5: Solve for x
x = 132,231,173,246,347.38/13,310,416.56 - Step 6: Final answer
x = 9,934,412.85
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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.