Finding the Fourth Proportional to 157,467,814.30, 236,201,721.45 and 147,901,876.30
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Solution
The fourth proportional to 157,467,814.30, 236,201,721.45 and 147,901,876.30 is: 221,852,814.45
Step by Step Solution
- Step 1: Write the proportion equation
157,467,814.30 : 236,201,721.45 = 147,901,876.30 : x - Step 2: Convert to fraction form
157,467,814.30/236,201,721.45 = 147,901,876.30/x - Step 3: Cross multiply
157,467,814.30x = 236,201,721.45 × 147,901,876.30 - Step 4: Simplify right side
157,467,814.30x = 34,934,677,787,744,956 - Step 5: Solve for x
x = 34,934,677,787,744,956/157,467,814.30 - Step 6: Final answer
x = 221,852,814.45
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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.