Finding the Fourth Proportional to 696,000,772.05, 960,246,013.21 and 394,553,765.67
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Solution
The fourth proportional to 696,000,772.05, 960,246,013.21 and 394,553,765.67 is: 544,350,948.59
Step by Step Solution
- Step 1: Write the proportion equation
696,000,772.05 : 960,246,013.21 = 394,553,765.67 : x - Step 2: Convert to fraction form
696,000,772.05/960,246,013.21 = 394,553,765.67/x - Step 3: Cross multiply
696,000,772.05x = 960,246,013.21 × 394,553,765.67 - Step 4: Simplify right side
696,000,772.05x = 378,868,680,481,610,112 - Step 5: Solve for x
x = 378,868,680,481,610,112/696,000,772.05 - Step 6: Final answer
x = 544,350,948.59
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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.