Finding the Fourth Proportional to 235,154,253.91, 324,533,548.07 and 129,326,318.01
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Solution
The fourth proportional to 235,154,253.91, 324,533,548.07 and 129,326,318.01 is: 178,481,690.83
Step by Step Solution
- Step 1: Write the proportion equation
235,154,253.91 : 324,533,548.07 = 129,326,318.01 : x - Step 2: Convert to fraction form
235,154,253.91/324,533,548.07 = 129,326,318.01/x - Step 3: Cross multiply
235,154,253.91x = 324,533,548.07 × 129,326,318.01 - Step 4: Simplify right side
235,154,253.91x = 41,970,728,842,614,440 - Step 5: Solve for x
x = 41,970,728,842,614,440/235,154,253.91 - Step 6: Final answer
x = 178,481,690.83
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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.