Finding the Fourth Proportional to 22,904,255.08, 31,639,989.35 and 20,835,620.99
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Solution
The fourth proportional to 22,904,255.08, 31,639,989.35 and 20,835,620.99 is: 28,782,373.58
Step by Step Solution
- Step 1: Write the proportion equation
22,904,255.08 : 31,639,989.35 = 20,835,620.99 : x - Step 2: Convert to fraction form
22,904,255.08/31,639,989.35 = 20,835,620.99/x - Step 3: Cross multiply
22,904,255.08x = 31,639,989.35 × 20,835,620.99 - Step 4: Simplify right side
22,904,255.08x = 659,238,826,236,775.50 - Step 5: Solve for x
x = 659,238,826,236,775.50/22,904,255.08 - Step 6: Final answer
x = 28,782,373.58
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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.