Finding the Fourth Proportional to 61,190,813.34, 91,786,220.01 and 20,239,249.28
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Solution
The fourth proportional to 61,190,813.34, 91,786,220.01 and 20,239,249.28 is: 30,358,873.91
Step by Step Solution
- Step 1: Write the proportion equation
61,190,813.34 : 91,786,220.01 = 20,239,249.28 : x - Step 2: Convert to fraction form
61,190,813.34/91,786,220.01 = 20,239,249.28/x - Step 3: Cross multiply
61,190,813.34x = 91,786,220.01 × 20,239,249.28 - Step 4: Simplify right side
61,190,813.34x = 1,857,684,186,792,383 - Step 5: Solve for x
x = 1,857,684,186,792,383/61,190,813.34 - Step 6: Final answer
x = 30,358,873.91
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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.