Finding the Fourth Proportional to 258,660,725.54, 387,987,433.94 and 120,409,006.62
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Solution
The fourth proportional to 258,660,725.54, 387,987,433.94 and 120,409,006.62 is: 180,611,808.79
Step by Step Solution
- Step 1: Write the proportion equation
258,660,725.54 : 387,987,433.94 = 120,409,006.62 : x - Step 2: Convert to fraction form
258,660,725.54/387,987,433.94 = 120,409,006.62/x - Step 3: Cross multiply
258,660,725.54x = 387,987,433.94 × 120,409,006.62 - Step 4: Simplify right side
258,660,725.54x = 46,717,181,501,758,272 - Step 5: Solve for x
x = 46,717,181,501,758,272/258,660,725.54 - Step 6: Final answer
x = 180,611,808.79
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.