Finding the Fourth Proportional to 696,000,772.18, 960,246,013.38 and 394,553,765.80
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Solution
The fourth proportional to 696,000,772.18, 960,246,013.38 and 394,553,765.80 is: 544,350,948.76
Step by Step Solution
- Step 1: Write the proportion equation
696,000,772.18 : 960,246,013.38 = 394,553,765.80 : x - Step 2: Convert to fraction form
696,000,772.18/960,246,013.38 = 394,553,765.80/x - Step 3: Cross multiply
696,000,772.18x = 960,246,013.38 × 394,553,765.80 - Step 4: Simplify right side
696,000,772.18x = 378,868,680,669,701,376 - Step 5: Solve for x
x = 378,868,680,669,701,376/696,000,772.18 - Step 6: Final answer
x = 544,350,948.76
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1.5x scale
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.