Finding the Fourth Proportional to 3,775,601.52, 5,209,941.74 and 2,121,485.94
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Solution
The fourth proportional to 3,775,601.52, 5,209,941.74 and 2,121,485.94 is: 2,927,432.38
Step by Step Solution
- Step 1: Write the proportion equation
3,775,601.52 : 5,209,941.74 = 2,121,485.94 : x - Step 2: Convert to fraction form
3,775,601.52/5,209,941.74 = 2,121,485.94/x - Step 3: Cross multiply
3,775,601.52x = 5,209,941.74 × 2,121,485.94 - Step 4: Simplify right side
3,775,601.52x = 11,052,818,139,021.71 - Step 5: Solve for x
x = 11,052,818,139,021.71/3,775,601.52 - Step 6: Final answer
x = 2,927,432.38
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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.