Finding the Fourth Proportional to 117,324,901.80, 175,987,352.70 and 87,091,813.80
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Solution
The fourth proportional to 117,324,901.80, 175,987,352.70 and 87,091,813.80 is: 130,637,720.70
Step by Step Solution
- Step 1: Write the proportion equation
117,324,901.80 : 175,987,352.70 = 87,091,813.80 : x - Step 2: Convert to fraction form
117,324,901.80/175,987,352.70 = 87,091,813.80/x - Step 3: Cross multiply
117,324,901.80x = 175,987,352.70 × 87,091,813.80 - Step 4: Simplify right side
117,324,901.80x = 15,327,057,752,503,326 - Step 5: Solve for x
x = 15,327,057,752,503,326/117,324,901.80 - Step 6: Final answer
x = 130,637,720.70
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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.