Finding the Fourth Proportional to 8,734,987.20, 13,102,480.80 and 8,343,076.80
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Solution
The fourth proportional to 8,734,987.20, 13,102,480.80 and 8,343,076.80 is: 12,514,615.20
Step by Step Solution
- Step 1: Write the proportion equation
8,734,987.20 : 13,102,480.80 = 8,343,076.80 : x - Step 2: Convert to fraction form
8,734,987.20/13,102,480.80 = 8,343,076.80/x - Step 3: Cross multiply
8,734,987.20x = 13,102,480.80 × 8,343,076.80 - Step 4: Simplify right side
8,734,987.20x = 109,315,003,584,925.44 - Step 5: Solve for x
x = 109,315,003,584,925.44/8,734,987.20 - Step 6: Final answer
x = 12,514,615.20
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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.