Finding the Fourth Proportional to 398,867,679.48, 598,512,171.06 and 283,031,540.49
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Solution
The fourth proportional to 398,867,679.48, 598,512,171.06 and 283,031,540.49 is: 424,696,786.66
Step by Step Solution
- Step 1: Write the proportion equation
398,867,679.48 : 598,512,171.06 = 283,031,540.49 : x - Step 2: Convert to fraction form
398,867,679.48/598,512,171.06 = 283,031,540.49/x - Step 3: Cross multiply
398,867,679.48x = 598,512,171.06 × 283,031,540.49 - Step 4: Simplify right side
398,867,679.48x = 169,397,821,777,126,176 - Step 5: Solve for x
x = 169,397,821,777,126,176/398,867,679.48 - Step 6: Final answer
x = 424,696,786.66
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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.