Finding the Fourth Proportional to 159,644,711.70, 239,467,067.55 and 121,380,959.70
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Solution
The fourth proportional to 159,644,711.70, 239,467,067.55 and 121,380,959.70 is: 182,071,439.55
Step by Step Solution
- Step 1: Write the proportion equation
159,644,711.70 : 239,467,067.55 = 121,380,959.70 : x - Step 2: Convert to fraction form
159,644,711.70/239,467,067.55 = 121,380,959.70/x - Step 3: Cross multiply
159,644,711.70x = 239,467,067.55 × 121,380,959.70 - Step 4: Simplify right side
159,644,711.70x = 29,066,742,475,763,728 - Step 5: Solve for x
x = 29,066,742,475,763,728/159,644,711.70 - Step 6: Final answer
x = 182,071,439.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.