Finding the Fourth Proportional to 167,531,999.20, 251,297,998.80 and 113,112,440.80
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Solution
The fourth proportional to 167,531,999.20, 251,297,998.80 and 113,112,440.80 is: 169,668,661.20
Step by Step Solution
- Step 1: Write the proportion equation
167,531,999.20 : 251,297,998.80 = 113,112,440.80 : x - Step 2: Convert to fraction form
167,531,999.20/251,297,998.80 = 113,112,440.80/x - Step 3: Cross multiply
167,531,999.20x = 251,297,998.80 × 113,112,440.80 - Step 4: Simplify right side
167,531,999.20x = 28,424,930,012,423,472 - Step 5: Solve for x
x = 28,424,930,012,423,472/167,531,999.20 - Step 6: Final answer
x = 169,668,661.20
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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.