Finding the Fourth Proportional to 22,571,952.75, 31,149,477.84 and 12,258,749.67
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Solution
The fourth proportional to 22,571,952.75, 31,149,477.84 and 12,258,749.67 is: 16,917,173.96
Step by Step Solution
- Step 1: Write the proportion equation
22,571,952.75 : 31,149,477.84 = 12,258,749.67 : x - Step 2: Convert to fraction form
22,571,952.75/31,149,477.84 = 12,258,749.67/x - Step 3: Cross multiply
22,571,952.75x = 31,149,477.84 × 12,258,749.67 - Step 4: Simplify right side
22,571,952.75x = 381,853,651,191,772.31 - Step 5: Solve for x
x = 381,853,651,191,772.31/22,571,952.75 - Step 6: Final answer
x = 16,917,173.96
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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.