Finding the Fourth Proportional to 136,153,223.65, 203,167,919.12 and 121,479,270.38
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Solution
The fourth proportional to 136,153,223.65, 203,167,919.12 and 121,479,270.38 is: 181,271,437.56
Step by Step Solution
- Step 1: Write the proportion equation
136,153,223.65 : 203,167,919.12 = 121,479,270.38 : x - Step 2: Convert to fraction form
136,153,223.65/203,167,919.12 = 121,479,270.38/x - Step 3: Cross multiply
136,153,223.65x = 203,167,919.12 × 121,479,270.38 - Step 4: Simplify right side
136,153,223.65x = 24,680,690,579,320,452 - Step 5: Solve for x
x = 24,680,690,579,320,452/136,153,223.65 - Step 6: Final answer
x = 181,271,437.56
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.