Finding the Fourth Proportional to 10,255,762.60, 14,157,310.16 and 6,390,193.61
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Solution
The fourth proportional to 10,255,762.60, 14,157,310.16 and 6,390,193.61 is: 8,821,182.44
Step by Step Solution
- Step 1: Write the proportion equation
10,255,762.60 : 14,157,310.16 = 6,390,193.61 : x - Step 2: Convert to fraction form
10,255,762.60/14,157,310.16 = 6,390,193.61/x - Step 3: Cross multiply
10,255,762.60x = 14,157,310.16 × 6,390,193.61 - Step 4: Simplify right side
10,255,762.60x = 90,467,952,919,220.08 - Step 5: Solve for x
x = 90,467,952,919,220.08/10,255,762.60 - Step 6: Final answer
x = 8,821,182.44
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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.