Finding the Fourth Proportional to 20,871,131.50, 31,306,938.21 and 6,298,177.18
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Solution
The fourth proportional to 20,871,131.50, 31,306,938.21 and 6,298,177.18 is: 9,447,338.48
Step by Step Solution
- Step 1: Write the proportion equation
20,871,131.50 : 31,306,938.21 = 6,298,177.18 : x - Step 2: Convert to fraction form
20,871,131.50/31,306,938.21 = 6,298,177.18/x - Step 3: Cross multiply
20,871,131.50x = 31,306,938.21 × 6,298,177.18 - Step 4: Simplify right side
20,871,131.50x = 197,176,643,809,892.03 - Step 5: Solve for x
x = 197,176,643,809,892.03/20,871,131.50 - Step 6: Final answer
x = 9,447,338.48
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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.