Finding the Fourth Proportional to 129,437,381.49, 194,156,073.84 and 31,069,087.86
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Solution
The fourth proportional to 129,437,381.49, 194,156,073.84 and 31,069,087.86 is: 46,603,632.18
Step by Step Solution
- Step 1: Write the proportion equation
129,437,381.49 : 194,156,073.84 = 31,069,087.86 : x - Step 2: Convert to fraction form
129,437,381.49/194,156,073.84 = 31,069,087.86/x - Step 3: Cross multiply
129,437,381.49x = 194,156,073.84 × 31,069,087.86 - Step 4: Simplify right side
129,437,381.49x = 6,032,252,116,687,608 - Step 5: Solve for x
x = 6,032,252,116,687,608/129,437,381.49 - Step 6: Final answer
x = 46,603,632.18
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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.