Finding the Fourth Proportional to 195,608,266.80, 293,412,400.20 and 138,212,638.80
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Solution
The fourth proportional to 195,608,266.80, 293,412,400.20 and 138,212,638.80 is: 207,318,958.20
Step by Step Solution
- Step 1: Write the proportion equation
195,608,266.80 : 293,412,400.20 = 138,212,638.80 : x - Step 2: Convert to fraction form
195,608,266.80/293,412,400.20 = 138,212,638.80/x - Step 3: Cross multiply
195,608,266.80x = 293,412,400.20 × 138,212,638.80 - Step 4: Simplify right side
195,608,266.80x = 40,553,302,088,283,648 - Step 5: Solve for x
x = 40,553,302,088,283,648/195,608,266.80 - Step 6: Final answer
x = 207,318,958.20
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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.