Finding the Fourth Proportional to 20,984,858.74, 31,464,466.22 and 10,058,391.80
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Solution
The fourth proportional to 20,984,858.74, 31,464,466.22 and 10,058,391.80 is: 15,081,441.95
Step by Step Solution
- Step 1: Write the proportion equation
20,984,858.74 : 31,464,466.22 = 10,058,391.80 : x - Step 2: Convert to fraction form
20,984,858.74/31,464,466.22 = 10,058,391.80/x - Step 3: Cross multiply
20,984,858.74x = 31,464,466.22 × 10,058,391.80 - Step 4: Simplify right side
20,984,858.74x = 316,481,928,858,446.06 - Step 5: Solve for x
x = 316,481,928,858,446.06/20,984,858.74 - Step 6: Final answer
x = 15,081,441.95
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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.