Finding the Fourth Proportional to 521,540,174.84, 719,731,169.73 and 286,590,896.06
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Solution
The fourth proportional to 521,540,174.84, 719,731,169.73 and 286,590,896.06 is: 395,498,584.39
Step by Step Solution
- Step 1: Write the proportion equation
521,540,174.84 : 719,731,169.73 = 286,590,896.06 : x - Step 2: Convert to fraction form
521,540,174.84/719,731,169.73 = 286,590,896.06/x - Step 3: Cross multiply
521,540,174.84x = 719,731,169.73 × 286,590,896.06 - Step 4: Simplify right side
521,540,174.84x = 206,268,400,851,634,016 - Step 5: Solve for x
x = 206,268,400,851,634,016/521,540,174.84 - Step 6: Final answer
x = 395,498,584.39
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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.