Finding the Fourth Proportional to 13,682,101.56, 18,881,301.61 and 7,487,149.62
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Solution
The fourth proportional to 13,682,101.56, 18,881,301.61 and 7,487,149.62 is: 10,332,267.28
Step by Step Solution
- Step 1: Write the proportion equation
13,682,101.56 : 18,881,301.61 = 7,487,149.62 : x - Step 2: Convert to fraction form
13,682,101.56/18,881,301.61 = 7,487,149.62/x - Step 3: Cross multiply
13,682,101.56x = 18,881,301.61 × 7,487,149.62 - Step 4: Simplify right side
13,682,101.56x = 141,367,130,222,530.91 - Step 5: Solve for x
x = 141,367,130,222,530.91/13,682,101.56 - Step 6: Final answer
x = 10,332,267.28
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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.