Finding the Fourth Proportional to 258,530,062.52, 356,881,571.38 and 173,806,318.12
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Solution
The fourth proportional to 258,530,062.52, 356,881,571.38 and 173,806,318.12 is: 239,926,727.75
Step by Step Solution
- Step 1: Write the proportion equation
258,530,062.52 : 356,881,571.38 = 173,806,318.12 : x - Step 2: Convert to fraction form
258,530,062.52/356,881,571.38 = 173,806,318.12/x - Step 3: Cross multiply
258,530,062.52x = 356,881,571.38 × 173,806,318.12 - Step 4: Simplify right side
258,530,062.52x = 62,028,271,926,437,768 - Step 5: Solve for x
x = 62,028,271,926,437,768/258,530,062.52 - Step 6: Final answer
x = 239,926,727.75
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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.