Finding the Fourth Proportional to 8,312,879.80, 12,462,407.70 and 3,524,246.20
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Solution
The fourth proportional to 8,312,879.80, 12,462,407.70 and 3,524,246.20 is: 5,283,438.96
Step by Step Solution
- Step 1: Write the proportion equation
8,312,879.80 : 12,462,407.70 = 3,524,246.20 : x - Step 2: Convert to fraction form
8,312,879.80/12,462,407.70 = 3,524,246.20/x - Step 3: Cross multiply
8,312,879.80x = 12,462,407.70 × 3,524,246.20 - Step 4: Simplify right side
8,312,879.80x = 43,920,592,979,575.74 - Step 5: Solve for x
x = 43,920,592,979,575.74/8,312,879.80 - Step 6: Final answer
x = 5,283,438.96
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1.5x scale
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.