Finding the Fourth Proportional to 199,701,998.70, 299,552,998.05 and 192,049,248.30
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Solution
The fourth proportional to 199,701,998.70, 299,552,998.05 and 192,049,248.30 is: 288,073,872.45
Step by Step Solution
- Step 1: Write the proportion equation
199,701,998.70 : 299,552,998.05 = 192,049,248.30 : x - Step 2: Convert to fraction form
199,701,998.70/299,552,998.05 = 192,049,248.30/x - Step 3: Cross multiply
199,701,998.70x = 299,552,998.05 × 192,049,248.30 - Step 4: Simplify right side
199,701,998.70x = 57,528,928,101,513,872 - Step 5: Solve for x
x = 57,528,928,101,513,872/199,701,998.70 - Step 6: Final answer
x = 288,073,872.45
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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.