Finding the Fourth Proportional to 18,895,358.36, 26,066,613.84 and 11,155,215.44
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Solution
The fourth proportional to 18,895,358.36, 26,066,613.84 and 11,155,215.44 is: 15,388,895.39
Step by Step Solution
- Step 1: Write the proportion equation
18,895,358.36 : 26,066,613.84 = 11,155,215.44 : x - Step 2: Convert to fraction form
18,895,358.36/26,066,613.84 = 11,155,215.44/x - Step 3: Cross multiply
18,895,358.36x = 26,066,613.84 × 11,155,215.44 - Step 4: Simplify right side
18,895,358.36x = 290,778,693,176,485.69 - Step 5: Solve for x
x = 290,778,693,176,485.69/18,895,358.36 - Step 6: Final answer
x = 15,388,895.39
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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.