Finding the Fourth Proportional to 15,129,680.80, 22,694,521.20 and 13,334,591.20
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Solution
The fourth proportional to 15,129,680.80, 22,694,521.20 and 13,334,591.20 is: 20,001,886.80
Step by Step Solution
- Step 1: Write the proportion equation
15,129,680.80 : 22,694,521.20 = 13,334,591.20 : x - Step 2: Convert to fraction form
15,129,680.80/22,694,521.20 = 13,334,591.20/x - Step 3: Cross multiply
15,129,680.80x = 22,694,521.20 × 13,334,591.20 - Step 4: Simplify right side
15,129,680.80x = 302,622,162,681,733.44 - Step 5: Solve for x
x = 302,622,162,681,733.44/15,129,680.80 - Step 6: Final answer
x = 20,001,886.80
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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.