Finding the Fourth Proportional to 202,723,785.50, 279,989,771.22 and 137,420,315.42
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Solution
The fourth proportional to 202,723,785.50, 279,989,771.22 and 137,420,315.42 is: 189,796,587.41
Step by Step Solution
- Step 1: Write the proportion equation
202,723,785.50 : 279,989,771.22 = 137,420,315.42 : x - Step 2: Convert to fraction form
202,723,785.50/279,989,771.22 = 137,420,315.42/x - Step 3: Cross multiply
202,723,785.50x = 279,989,771.22 × 137,420,315.42 - Step 4: Simplify right side
202,723,785.50x = 38,476,282,675,426,040 - Step 5: Solve for x
x = 38,476,282,675,426,040/202,723,785.50 - Step 6: Final answer
x = 189,796,587.41
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.