Finding the Fourth Proportional to 22,946,113.67, 31,664,434.88 and 12,630,821.99
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Solution
The fourth proportional to 22,946,113.67, 31,664,434.88 and 12,630,821.99 is: 17,429,872.71
Step by Step Solution
- Step 1: Write the proportion equation
22,946,113.67 : 31,664,434.88 = 12,630,821.99 : x - Step 2: Convert to fraction form
22,946,113.67/31,664,434.88 = 12,630,821.99/x - Step 3: Cross multiply
22,946,113.67x = 31,664,434.88 × 12,630,821.99 - Step 4: Simplify right side
22,946,113.67x = 399,947,840,256,481.88 - Step 5: Solve for x
x = 399,947,840,256,481.88/22,946,113.67 - Step 6: Final answer
x = 17,429,872.71
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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.