Finding the Fourth Proportional to 18,587,158.41, 27,869,911.97 and 7,214,321.01
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Solution
The fourth proportional to 18,587,158.41, 27,869,911.97 and 7,214,321.01 is: 10,817,279.71
Step by Step Solution
- Step 1: Write the proportion equation
18,587,158.41 : 27,869,911.97 = 7,214,321.01 : x - Step 2: Convert to fraction form
18,587,158.41/27,869,911.97 = 7,214,321.01/x - Step 3: Cross multiply
18,587,158.41x = 27,869,911.97 × 7,214,321.01 - Step 4: Simplify right side
18,587,158.41x = 201,062,491,472,021.47 - Step 5: Solve for x
x = 201,062,491,472,021.47/18,587,158.41 - Step 6: Final answer
x = 10,817,279.71
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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.