Finding the Fourth Proportional to 5,365,416.80, 8,045,360.40 and 1,997,890.40
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Solution
The fourth proportional to 5,365,416.80, 8,045,360.40 and 1,997,890.40 is: 2,995,806.09
Step by Step Solution
- Step 1: Write the proportion equation
5,365,416.80 : 8,045,360.40 = 1,997,890.40 : x - Step 2: Convert to fraction form
5,365,416.80/8,045,360.40 = 1,997,890.40/x - Step 3: Cross multiply
5,365,416.80x = 8,045,360.40 × 1,997,890.40 - Step 4: Simplify right side
5,365,416.80x = 16,073,748,307,700.16 - Step 5: Solve for x
x = 16,073,748,307,700.16/5,365,416.80 - Step 6: Final answer
x = 2,995,806.09
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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.