Finding the Fourth Proportional to 102,420,292.37, 141,352,914.75 and 67,167,744.12
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Solution
The fourth proportional to 102,420,292.37, 141,352,914.75 and 67,167,744.12 is: 92,699,954.17
Step by Step Solution
- Step 1: Write the proportion equation
102,420,292.37 : 141,352,914.75 = 67,167,744.12 : x - Step 2: Convert to fraction form
102,420,292.37/141,352,914.75 = 67,167,744.12/x - Step 3: Cross multiply
102,420,292.37x = 141,352,914.75 × 67,167,744.12 - Step 4: Simplify right side
102,420,292.37x = 9,494,356,408,544,174 - Step 5: Solve for x
x = 9,494,356,408,544,174/102,420,292.37 - Step 6: Final answer
x = 92,699,954.17
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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.