Finding the Fourth Proportional to 239,565,825.05, 330,601,834.53 and 129,557,538.05
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Solution
The fourth proportional to 239,565,825.05, 330,601,834.53 and 129,557,538.05 is: 178,789,941.12
Step by Step Solution
- Step 1: Write the proportion equation
239,565,825.05 : 330,601,834.53 = 129,557,538.05 : x - Step 2: Convert to fraction form
239,565,825.05/330,601,834.53 = 129,557,538.05/x - Step 3: Cross multiply
239,565,825.05x = 330,601,834.53 × 129,557,538.05 - Step 4: Simplify right side
239,565,825.05x = 42,831,959,754,867,264 - Step 5: Solve for x
x = 42,831,959,754,867,264/239,565,825.05 - Step 6: Final answer
x = 178,789,941.12
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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.