Finding the Fourth Proportional to 10,255,762.85, 14,157,310.55 and 6,390,193.88
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Solution
The fourth proportional to 10,255,762.85, 14,157,310.55 and 6,390,193.88 is: 8,821,182.84
Step by Step Solution
- Step 1: Write the proportion equation
10,255,762.85 : 14,157,310.55 = 6,390,193.88 : x - Step 2: Convert to fraction form
10,255,762.85/14,157,310.55 = 6,390,193.88/x - Step 3: Cross multiply
10,255,762.85x = 14,157,310.55 × 6,390,193.88 - Step 4: Simplify right side
10,255,762.85x = 90,467,959,233,869.44 - Step 5: Solve for x
x = 90,467,959,233,869.44/10,255,762.85 - Step 6: Final answer
x = 8,821,182.84
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.