Finding the Fourth Proportional to 12,985,809.68, 19,478,517.60 and 4,466,219.92
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Solution
The fourth proportional to 12,985,809.68, 19,478,517.60 and 4,466,219.92 is: 6,699,262.15
Step by Step Solution
- Step 1: Write the proportion equation
12,985,809.68 : 19,478,517.60 = 4,466,219.92 : x - Step 2: Convert to fraction form
12,985,809.68/19,478,517.60 = 4,466,219.92/x - Step 3: Cross multiply
12,985,809.68x = 19,478,517.60 × 4,466,219.92 - Step 4: Simplify right side
12,985,809.68x = 86,995,343,317,190.59 - Step 5: Solve for x
x = 86,995,343,317,190.59/12,985,809.68 - Step 6: Final answer
x = 6,699,262.15
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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.