Finding the Fourth Proportional to 10,534,899.60, 15,775,777.35 and 8,409,135.60
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Solution
The fourth proportional to 10,534,899.60, 15,775,777.35 and 8,409,135.60 is: 12,592,493.14
Step by Step Solution
- Step 1: Write the proportion equation
10,534,899.60 : 15,775,777.35 = 8,409,135.60 : x - Step 2: Convert to fraction form
10,534,899.60/15,775,777.35 = 8,409,135.60/x - Step 3: Cross multiply
10,534,899.60x = 15,775,777.35 × 8,409,135.60 - Step 4: Simplify right side
10,534,899.60x = 132,660,650,931,558.66 - Step 5: Solve for x
x = 132,660,650,931,558.66/10,534,899.60 - Step 6: Final answer
x = 12,592,493.14
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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.