Finding the Fourth Proportional to 696,095,755.12, 960,376,801.62 and 394,648,728.09
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Solution
The fourth proportional to 696,095,755.12, 960,376,801.62 and 394,648,728.09 is: 544,481,819.43
Step by Step Solution
- Step 1: Write the proportion equation
696,095,755.12 : 960,376,801.62 = 394,648,728.09 : x - Step 2: Convert to fraction form
696,095,755.12/960,376,801.62 = 394,648,728.09/x - Step 3: Cross multiply
696,095,755.12x = 960,376,801.62 × 394,648,728.09 - Step 4: Simplify right side
696,095,755.12x = 379,011,483,246,475,200 - Step 5: Solve for x
x = 379,011,483,246,475,200/696,095,755.12 - Step 6: Final answer
x = 544,481,819.43
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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.