Finding the Fourth Proportional to 18,128,823.48, 27,193,985.66 and 5,349,328.04
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Solution
The fourth proportional to 18,128,823.48, 27,193,985.66 and 5,349,328.04 is: 8,024,213.49
Step by Step Solution
- Step 1: Write the proportion equation
18,128,823.48 : 27,193,985.66 = 5,349,328.04 : x - Step 2: Convert to fraction form
18,128,823.48/27,193,985.66 = 5,349,328.04/x - Step 3: Cross multiply
18,128,823.48x = 27,193,985.66 × 5,349,328.04 - Step 4: Simplify right side
18,128,823.48x = 145,469,550,010,395.91 - Step 5: Solve for x
x = 145,469,550,010,395.91/18,128,823.48 - Step 6: Final answer
x = 8,024,213.49
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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.