Finding the Fourth Proportional to 40,170,232.80, 55,434,956.99 and 21,835,518.30
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Solution
The fourth proportional to 40,170,232.80, 55,434,956.99 and 21,835,518.30 is: 30,133,034.67
Step by Step Solution
- Step 1: Write the proportion equation
40,170,232.80 : 55,434,956.99 = 21,835,518.30 : x - Step 2: Convert to fraction form
40,170,232.80/55,434,956.99 = 21,835,518.30/x - Step 3: Cross multiply
40,170,232.80x = 55,434,956.99 × 21,835,518.30 - Step 4: Simplify right side
40,170,232.80x = 1,210,451,017,705,680.25 - Step 5: Solve for x
x = 1,210,451,017,705,680.25/40,170,232.80 - Step 6: Final answer
x = 30,133,034.67
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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.