Finding the Fourth Proportional to 319,627,189.70, 479,440,784.55 and 147,440,305.70
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Solution
The fourth proportional to 319,627,189.70, 479,440,784.55 and 147,440,305.70 is: 221,160,458.55
Step by Step Solution
- Step 1: Write the proportion equation
319,627,189.70 : 479,440,784.55 = 147,440,305.70 : x - Step 2: Convert to fraction form
319,627,189.70/479,440,784.55 = 147,440,305.70/x - Step 3: Cross multiply
319,627,189.70x = 479,440,784.55 × 147,440,305.70 - Step 4: Simplify right side
319,627,189.70x = 70,688,895,839,099,832 - Step 5: Solve for x
x = 70,688,895,839,099,832/319,627,189.70 - Step 6: Final answer
x = 221,160,458.55
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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.