Finding the Fourth Proportional to 30,299,743.80, 45,449,615.70 and 15,148,207.80
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Solution
The fourth proportional to 30,299,743.80, 45,449,615.70 and 15,148,207.80 is: 22,722,311.70
Step by Step Solution
- Step 1: Write the proportion equation
30,299,743.80 : 45,449,615.70 = 15,148,207.80 : x - Step 2: Convert to fraction form
30,299,743.80/45,449,615.70 = 15,148,207.80/x - Step 3: Cross multiply
30,299,743.80x = 45,449,615.70 × 15,148,207.80 - Step 4: Simplify right side
30,299,743.80x = 688,480,223,053,742.50 - Step 5: Solve for x
x = 688,480,223,053,742.50/30,299,743.80 - Step 6: Final answer
x = 22,722,311.70
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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.