Finding the Fourth Proportional to 12,359,488.40, 18,539,232.60 and 8,533,113.20
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Solution
The fourth proportional to 12,359,488.40, 18,539,232.60 and 8,533,113.20 is: 12,799,669.80
Step by Step Solution
- Step 1: Write the proportion equation
12,359,488.40 : 18,539,232.60 = 8,533,113.20 : x - Step 2: Convert to fraction form
12,359,488.40/18,539,232.60 = 8,533,113.20/x - Step 3: Cross multiply
12,359,488.40x = 18,539,232.60 × 8,533,113.20 - Step 4: Simplify right side
12,359,488.40x = 158,197,370,416,930.31 - Step 5: Solve for x
x = 158,197,370,416,930.31/12,359,488.40 - Step 6: Final answer
x = 12,799,669.80
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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.