Finding the Fourth Proportional to 18,717,961.36, 28,076,568.22 and 8,480,913.26
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Solution
The fourth proportional to 18,717,961.36, 28,076,568.22 and 8,480,913.26 is: 12,721,200.52
Step by Step Solution
- Step 1: Write the proportion equation
18,717,961.36 : 28,076,568.22 = 8,480,913.26 : x - Step 2: Convert to fraction form
18,717,961.36/28,076,568.22 = 8,480,913.26/x - Step 3: Cross multiply
18,717,961.36x = 28,076,568.22 × 8,480,913.26 - Step 4: Simplify right side
18,717,961.36x = 238,114,939,712,292.59 - Step 5: Solve for x
x = 238,114,939,712,292.59/18,717,961.36 - Step 6: Final answer
x = 12,721,200.52
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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.