Finding the Fourth Proportional to 313,747,705.58, 470,679,008.18 and 129,414,622.70
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Solution
The fourth proportional to 313,747,705.58, 470,679,008.18 and 129,414,622.70 is: 194,145,630.94
Step by Step Solution
- Step 1: Write the proportion equation
313,747,705.58 : 470,679,008.18 = 129,414,622.70 : x - Step 2: Convert to fraction form
313,747,705.58/470,679,008.18 = 129,414,622.70/x - Step 3: Cross multiply
313,747,705.58x = 470,679,008.18 × 129,414,622.70 - Step 4: Simplify right side
313,747,705.58x = 60,912,746,253,424,440 - Step 5: Solve for x
x = 60,912,746,253,424,440/313,747,705.58 - Step 6: Final answer
x = 194,145,630.94
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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.