Finding the Fourth Proportional to 18,139,194.45, 27,220,497.43 and 6,623,697.56
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Solution
The fourth proportional to 18,139,194.45, 27,220,497.43 and 6,623,697.56 is: 9,939,820.81
Step by Step Solution
- Step 1: Write the proportion equation
18,139,194.45 : 27,220,497.43 = 6,623,697.56 : x - Step 2: Convert to fraction form
18,139,194.45/27,220,497.43 = 6,623,697.56/x - Step 3: Cross multiply
18,139,194.45x = 27,220,497.43 × 6,623,697.56 - Step 4: Simplify right side
18,139,194.45x = 180,300,342,409,077.25 - Step 5: Solve for x
x = 180,300,342,409,077.25/18,139,194.45 - Step 6: Final answer
x = 9,939,820.81
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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.