Finding the Fourth Proportional to 129,277,409.70, 193,916,114.55 and 52,655,427.30
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Solution
The fourth proportional to 129,277,409.70, 193,916,114.55 and 52,655,427.30 is: 78,983,140.95
Step by Step Solution
- Step 1: Write the proportion equation
129,277,409.70 : 193,916,114.55 = 52,655,427.30 : x - Step 2: Convert to fraction form
129,277,409.70/193,916,114.55 = 52,655,427.30/x - Step 3: Cross multiply
129,277,409.70x = 193,916,114.55 × 52,655,427.30 - Step 4: Simplify right side
129,277,409.70x = 10,210,735,871,985,998 - Step 5: Solve for x
x = 10,210,735,871,985,998/129,277,409.70 - Step 6: Final answer
x = 78,983,140.95
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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.