Finding the Fourth Proportional to 239,565,842.48, 330,601,858.59 and 129,557,555.48
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Solution
The fourth proportional to 239,565,842.48, 330,601,858.59 and 129,557,555.48 is: 178,789,965.19
Step by Step Solution
- Step 1: Write the proportion equation
239,565,842.48 : 330,601,858.59 = 129,557,555.48 : x - Step 2: Convert to fraction form
239,565,842.48/330,601,858.59 = 129,557,555.48/x - Step 3: Cross multiply
239,565,842.48x = 330,601,858.59 × 129,557,555.48 - Step 4: Simplify right side
239,565,842.48x = 42,831,968,637,377,384 - Step 5: Solve for x
x = 42,831,968,637,377,384/239,565,842.48 - Step 6: Final answer
x = 178,789,965.19
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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.