Finding the Fourth Proportional to 23,071,865.85, 31,839,118.74 and 13,278,735
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Solution
The fourth proportional to 23,071,865.85, 31,839,118.74 and 13,278,735 is: 18,324,621.99
Step by Step Solution
- Step 1: Write the proportion equation
23,071,865.85 : 31,839,118.74 = 13,278,735 : x - Step 2: Convert to fraction form
23,071,865.85/31,839,118.74 = 13,278,735/x - Step 3: Cross multiply
23,071,865.85x = 31,839,118.74 × 13,278,735 - Step 4: Simplify right side
23,071,865.85x = 422,783,220,381,993.88 - Step 5: Solve for x
x = 422,783,220,381,993.88/23,071,865.85 - Step 6: Final answer
x = 18,324,621.99
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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.