Finding the Fourth Proportional to 199,701,997.20, 299,552,995.80 and 192,049,246.80
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Solution
The fourth proportional to 199,701,997.20, 299,552,995.80 and 192,049,246.80 is: 288,073,870.20
Step by Step Solution
- Step 1: Write the proportion equation
199,701,997.20 : 299,552,995.80 = 192,049,246.80 : x - Step 2: Convert to fraction form
199,701,997.20/299,552,995.80 = 192,049,246.80/x - Step 3: Cross multiply
199,701,997.20x = 299,552,995.80 × 192,049,246.80 - Step 4: Simplify right side
199,701,997.20x = 57,528,927,220,073,568 - Step 5: Solve for x
x = 57,528,927,220,073,568/199,701,997.20 - Step 6: Final answer
x = 288,073,870.20
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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.