Finding the Fourth Proportional to 239,565,826.05, 330,601,835.91 and 129,557,539.05
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Solution
The fourth proportional to 239,565,826.05, 330,601,835.91 and 129,557,539.05 is: 178,789,942.51
Step by Step Solution
- Step 1: Write the proportion equation
239,565,826.05 : 330,601,835.91 = 129,557,539.05 : x - Step 2: Convert to fraction form
239,565,826.05/330,601,835.91 = 129,557,539.05/x - Step 3: Cross multiply
239,565,826.05x = 330,601,835.91 × 129,557,539.05 - Step 4: Simplify right side
239,565,826.05x = 42,831,960,265,911,520 - Step 5: Solve for x
x = 42,831,960,265,911,520/239,565,826.05 - Step 6: Final answer
x = 178,789,942.51
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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.