Finding the Fourth Proportional to 12,661,507.99, 17,472,857.07 and 6,860,446.75
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Solution
The fourth proportional to 12,661,507.99, 17,472,857.07 and 6,860,446.75 is: 9,467,403.53
Step by Step Solution
- Step 1: Write the proportion equation
12,661,507.99 : 17,472,857.07 = 6,860,446.75 : x - Step 2: Convert to fraction form
12,661,507.99/17,472,857.07 = 6,860,446.75/x - Step 3: Cross multiply
12,661,507.99x = 17,472,857.07 × 6,860,446.75 - Step 4: Simplify right side
12,661,507.99x = 119,871,605,499,096.03 - Step 5: Solve for x
x = 119,871,605,499,096.03/12,661,507.99 - Step 6: Final answer
x = 9,467,403.53
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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.