Finding the Fourth Proportional to 21,351,059.16, 29,464,602.57 and 11,561,503.02
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Solution
The fourth proportional to 21,351,059.16, 29,464,602.57 and 11,561,503.02 is: 15,954,950.48
Step by Step Solution
- Step 1: Write the proportion equation
21,351,059.16 : 29,464,602.57 = 11,561,503.02 : x - Step 2: Convert to fraction form
21,351,059.16/29,464,602.57 = 11,561,503.02/x - Step 3: Cross multiply
21,351,059.16x = 29,464,602.57 × 11,561,503.02 - Step 4: Simplify right side
21,351,059.16x = 340,655,091,596,154.75 - Step 5: Solve for x
x = 340,655,091,596,154.75/21,351,059.16 - Step 6: Final answer
x = 15,954,950.48
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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.