Finding the Fourth Proportional to 21,657,764.24, 29,901,304.72 and 13,936,225.44
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Solution
The fourth proportional to 21,657,764.24, 29,901,304.72 and 13,936,225.44 is: 19,240,735.97
Step by Step Solution
- Step 1: Write the proportion equation
21,657,764.24 : 29,901,304.72 = 13,936,225.44 : x - Step 2: Convert to fraction form
21,657,764.24/29,901,304.72 = 13,936,225.44/x - Step 3: Cross multiply
21,657,764.24x = 29,901,304.72 × 13,936,225.44 - Step 4: Simplify right side
21,657,764.24x = 416,711,323,528,056.06 - Step 5: Solve for x
x = 416,711,323,528,056.06/21,657,764.24 - Step 6: Final answer
x = 19,240,735.97
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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.