Finding the Fourth Proportional to 8,312,942.80, 12,462,502.20 and 3,524,309.20
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Solution
The fourth proportional to 8,312,942.80, 12,462,502.20 and 3,524,309.20 is: 5,283,533.43
Step by Step Solution
- Step 1: Write the proportion equation
8,312,942.80 : 12,462,502.20 = 3,524,309.20 : x - Step 2: Convert to fraction form
8,312,942.80/12,462,502.20 = 3,524,309.20/x - Step 3: Cross multiply
8,312,942.80x = 12,462,502.20 × 3,524,309.20 - Step 4: Simplify right side
8,312,942.80x = 43,921,711,158,480.24 - Step 5: Solve for x
x = 43,921,711,158,480.24/8,312,942.80 - Step 6: Final answer
x = 5,283,533.43
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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.