Finding the Fourth Proportional to 30,930,460.26, 42,684,472.34 and 16,993,103.45
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Solution
The fourth proportional to 30,930,460.26, 42,684,472.34 and 16,993,103.45 is: 23,450,722.95
Step by Step Solution
- Step 1: Write the proportion equation
30,930,460.26 : 42,684,472.34 = 16,993,103.45 : x - Step 2: Convert to fraction form
30,930,460.26/42,684,472.34 = 16,993,103.45/x - Step 3: Cross multiply
30,930,460.26x = 42,684,472.34 × 16,993,103.45 - Step 4: Simplify right side
30,930,460.26x = 725,341,654,256,406 - Step 5: Solve for x
x = 725,341,654,256,406/30,930,460.26 - Step 6: Final answer
x = 23,450,722.95
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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.