Finding the Fourth Proportional to 129,489,072.70, 194,233,609.05 and 88,674,403.90
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Solution
The fourth proportional to 129,489,072.70, 194,233,609.05 and 88,674,403.90 is: 133,011,605.85
Step by Step Solution
- Step 1: Write the proportion equation
129,489,072.70 : 194,233,609.05 = 88,674,403.90 : x - Step 2: Convert to fraction form
129,489,072.70/194,233,609.05 = 88,674,403.90/x - Step 3: Cross multiply
129,489,072.70x = 194,233,609.05 × 88,674,403.90 - Step 4: Simplify right side
129,489,072.70x = 17,223,549,499,854,398 - Step 5: Solve for x
x = 17,223,549,499,854,398/129,489,072.70 - Step 6: Final answer
x = 133,011,605.85
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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.