Finding the Fourth Proportional to 313,131,780.17, 432,096,656.33 and 180,981,336.05
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Solution
The fourth proportional to 313,131,780.17, 432,096,656.33 and 180,981,336.05 is: 249,739,678.69
Step by Step Solution
- Step 1: Write the proportion equation
313,131,780.17 : 432,096,656.33 = 180,981,336.05 : x - Step 2: Convert to fraction form
313,131,780.17/432,096,656.33 = 180,981,336.05/x - Step 3: Cross multiply
313,131,780.17x = 432,096,656.33 × 180,981,336.05 - Step 4: Simplify right side
313,131,780.17x = 78,201,430,166,873,792 - Step 5: Solve for x
x = 78,201,430,166,873,792/313,131,780.17 - Step 6: Final answer
x = 249,739,678.69
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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.