Finding the Fourth Proportional to 165,401,543.80, 248,102,315.70 and 68,324,987.80
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Solution
The fourth proportional to 165,401,543.80, 248,102,315.70 and 68,324,987.80 is: 102,487,481.70
Step by Step Solution
- Step 1: Write the proportion equation
165,401,543.80 : 248,102,315.70 = 68,324,987.80 : x - Step 2: Convert to fraction form
165,401,543.80/248,102,315.70 = 68,324,987.80/x - Step 3: Cross multiply
165,401,543.80x = 248,102,315.70 × 68,324,987.80 - Step 4: Simplify right side
165,401,543.80x = 16,951,587,693,354,246 - Step 5: Solve for x
x = 16,951,587,693,354,246/165,401,543.80 - Step 6: Final answer
x = 102,487,481.70
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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.