Finding the Fourth Proportional to 53,415,649.67, 80,081,615.99 and 21,091,747.34
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Solution
The fourth proportional to 53,415,649.67, 80,081,615.99 and 21,091,747.34 is: 31,621,092.73
Step by Step Solution
- Step 1: Write the proportion equation
53,415,649.67 : 80,081,615.99 = 21,091,747.34 : x - Step 2: Convert to fraction form
53,415,649.67/80,081,615.99 = 21,091,747.34/x - Step 3: Cross multiply
53,415,649.67x = 80,081,615.99 × 21,091,747.34 - Step 4: Simplify right side
53,415,649.67x = 1,689,061,211,292,917.50 - Step 5: Solve for x
x = 1,689,061,211,292,917.50/53,415,649.67 - Step 6: Final answer
x = 31,621,092.73
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.