Finding the Fourth Proportional to 22,502,529.20, 31,053,639.32 and 12,189,252.26
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Solution
The fourth proportional to 22,502,529.20, 31,053,639.32 and 12,189,252.26 is: 16,821,248.84
Step by Step Solution
- Step 1: Write the proportion equation
22,502,529.20 : 31,053,639.32 = 12,189,252.26 : x - Step 2: Convert to fraction form
22,502,529.20/31,053,639.32 = 12,189,252.26/x - Step 3: Cross multiply
22,502,529.20x = 31,053,639.32 × 12,189,252.26 - Step 4: Simplify right side
22,502,529.20x = 378,520,643,046,320.44 - Step 5: Solve for x
x = 378,520,643,046,320.44/22,502,529.20 - Step 6: Final answer
x = 16,821,248.84
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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.