Finding the Fourth Proportional to 12,770,415.99, 17,623,563.12 and 7,264,588.77
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Solution
The fourth proportional to 12,770,415.99, 17,623,563.12 and 7,264,588.77 is: 10,025,353.82
Step by Step Solution
- Step 1: Write the proportion equation
12,770,415.99 : 17,623,563.12 = 7,264,588.77 : x - Step 2: Convert to fraction form
12,770,415.99/17,623,563.12 = 7,264,588.77/x - Step 3: Cross multiply
12,770,415.99x = 17,623,563.12 × 7,264,588.77 - Step 4: Simplify right side
12,770,415.99x = 128,027,938,728,938.16 - Step 5: Solve for x
x = 128,027,938,728,938.16/12,770,415.99 - Step 6: Final answer
x = 10,025,353.82
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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.