Finding the Fourth Proportional to 431,569,137.05, 647,353,705.58 and 431,569,137.05
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Solution
The fourth proportional to 431,569,137.05, 647,353,705.58 and 431,569,137.05 is: 647,353,705.58
Step by Step Solution
- Step 1: Write the proportion equation
431,569,137.05 : 647,353,705.58 = 431,569,137.05 : x - Step 2: Convert to fraction form
431,569,137.05/647,353,705.58 = 431,569,137.05/x - Step 3: Cross multiply
431,569,137.05x = 647,353,705.58 × 431,569,137.05 - Step 4: Simplify right side
431,569,137.05x = 279,377,880,083,280,384 - Step 5: Solve for x
x = 279,377,880,083,280,384/431,569,137.05 - Step 6: Final answer
x = 647,353,705.58
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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.