Finding the Fourth Proportional to 36,762,415.30, 55,143,622.95 and 20,638,101.70
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Solution
The fourth proportional to 36,762,415.30, 55,143,622.95 and 20,638,101.70 is: 30,957,152.55
Step by Step Solution
- Step 1: Write the proportion equation
36,762,415.30 : 55,143,622.95 = 20,638,101.70 : x - Step 2: Convert to fraction form
36,762,415.30/55,143,622.95 = 20,638,101.70/x - Step 3: Cross multiply
36,762,415.30x = 55,143,622.95 × 20,638,101.70 - Step 4: Simplify right side
36,762,415.30x = 1,138,059,698,548,554 - Step 5: Solve for x
x = 1,138,059,698,548,554/36,762,415.30 - Step 6: Final answer
x = 30,957,152.55
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1.5x scale
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.