Finding the Fourth Proportional to 13,542,347.28, 18,688,762.22 and 7,741,668.76
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Solution
The fourth proportional to 13,542,347.28, 18,688,762.22 and 7,741,668.76 is: 10,683,687.52
Step by Step Solution
- Step 1: Write the proportion equation
13,542,347.28 : 18,688,762.22 = 7,741,668.76 : x - Step 2: Convert to fraction form
13,542,347.28/18,688,762.22 = 7,741,668.76/x - Step 3: Cross multiply
13,542,347.28x = 18,688,762.22 × 7,741,668.76 - Step 4: Simplify right side
13,542,347.28x = 144,682,206,641,642.22 - Step 5: Solve for x
x = 144,682,206,641,642.22/13,542,347.28 - Step 6: Final answer
x = 10,683,687.52
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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.