Finding the Fourth Proportional to 216,874,306.52, 299,291,742.79 and 117,759,231.42
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Solution
The fourth proportional to 216,874,306.52, 299,291,742.79 and 117,759,231.42 is: 162,510,562.76
Step by Step Solution
- Step 1: Write the proportion equation
216,874,306.52 : 299,291,742.79 = 117,759,231.42 : x - Step 2: Convert to fraction form
216,874,306.52/299,291,742.79 = 117,759,231.42/x - Step 3: Cross multiply
216,874,306.52x = 299,291,742.79 × 117,759,231.42 - Step 4: Simplify right side
216,874,306.52x = 35,244,365,601,571,000 - Step 5: Solve for x
x = 35,244,365,601,571,000/216,874,306.52 - Step 6: Final answer
x = 162,510,562.76
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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.