Finding the Fourth Proportional to 37,128,391.20, 51,236,385.98 and 20,607,552.63
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Solution
The fourth proportional to 37,128,391.20, 51,236,385.98 and 20,607,552.63 is: 28,437,982.00
Step by Step Solution
- Step 1: Write the proportion equation
37,128,391.20 : 51,236,385.98 = 20,607,552.63 : x - Step 2: Convert to fraction form
37,128,391.20/51,236,385.98 = 20,607,552.63/x - Step 3: Cross multiply
37,128,391.20x = 51,236,385.98 × 20,607,552.63 - Step 4: Simplify right side
37,128,391.20x = 1,055,856,520,550,806.38 - Step 5: Solve for x
x = 1,055,856,520,550,806.38/37,128,391.20 - Step 6: Final answer
x = 28,437,982.00
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1.5x scale
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.