Finding the Fourth Proportional to 8,197,467.80, 11,313,465.06 and 6,818,378.44
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Solution
The fourth proportional to 8,197,467.80, 11,313,465.06 and 6,818,378.44 is: 9,410,160.32
Step by Step Solution
- Step 1: Write the proportion equation
8,197,467.80 : 11,313,465.06 = 6,818,378.44 : x - Step 2: Convert to fraction form
8,197,467.80/11,313,465.06 = 6,818,378.44/x - Step 3: Cross multiply
8,197,467.80x = 11,313,465.06 × 6,818,378.44 - Step 4: Simplify right side
8,197,467.80x = 77,139,486,246,797.31 - Step 5: Solve for x
x = 77,139,486,246,797.31/8,197,467.80 - Step 6: Final answer
x = 9,410,160.32
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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.