Finding the Fourth Proportional to 18,717,959.37, 28,076,565.21 and 8,480,911.26
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Solution
The fourth proportional to 18,717,959.37, 28,076,565.21 and 8,480,911.26 is: 12,721,197.50
Step by Step Solution
- Step 1: Write the proportion equation
18,717,959.37 : 28,076,565.21 = 8,480,911.26 : x - Step 2: Convert to fraction form
18,717,959.37/28,076,565.21 = 8,480,911.26/x - Step 3: Cross multiply
18,717,959.37x = 28,076,565.21 × 8,480,911.26 - Step 4: Simplify right side
18,717,959.37x = 238,114,857,994,862.94 - Step 5: Solve for x
x = 238,114,857,994,862.94/18,717,959.37 - Step 6: Final answer
x = 12,721,197.50
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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.