Finding the Fourth Proportional to 195,611,487.80, 293,417,231.70 and 138,215,859.80
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Solution
The fourth proportional to 195,611,487.80, 293,417,231.70 and 138,215,859.80 is: 207,323,789.70
Step by Step Solution
- Step 1: Write the proportion equation
195,611,487.80 : 293,417,231.70 = 138,215,859.80 : x - Step 2: Convert to fraction form
195,611,487.80/293,417,231.70 = 138,215,859.80/x - Step 3: Cross multiply
195,611,487.80x = 293,417,231.70 × 138,215,859.80 - Step 4: Simplify right side
195,611,487.80x = 40,554,914,959,551,320 - Step 5: Solve for x
x = 40,554,914,959,551,320/195,611,487.80 - Step 6: Final answer
x = 207,323,789.70
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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.