Finding the Fourth Proportional to 8,172,467.99, 11,278,005.28 and 4,736,701.92
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Solution
The fourth proportional to 8,172,467.99, 11,278,005.28 and 4,736,701.92 is: 6,536,648.34
Step by Step Solution
- Step 1: Write the proportion equation
8,172,467.99 : 11,278,005.28 = 4,736,701.92 : x - Step 2: Convert to fraction form
8,172,467.99/11,278,005.28 = 4,736,701.92/x - Step 3: Cross multiply
8,172,467.99x = 11,278,005.28 × 4,736,701.92 - Step 4: Simplify right side
8,172,467.99x = 53,420,549,263,546.13 - Step 5: Solve for x
x = 53,420,549,263,546.13/8,172,467.99 - Step 6: Final answer
x = 6,536,648.34
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.