Finding the Fourth Proportional to 20,819,774.36, 28,732,186.63 and 11,527,344.63
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Solution
The fourth proportional to 20,819,774.36, 28,732,186.63 and 11,527,344.63 is: 15,908,232.80
Step by Step Solution
- Step 1: Write the proportion equation
20,819,774.36 : 28,732,186.63 = 11,527,344.63 : x - Step 2: Convert to fraction form
20,819,774.36/28,732,186.63 = 11,527,344.63/x - Step 3: Cross multiply
20,819,774.36x = 28,732,186.63 × 11,527,344.63 - Step 4: Simplify right side
20,819,774.36x = 331,205,817,228,670 - Step 5: Solve for x
x = 331,205,817,228,670/20,819,774.36 - Step 6: Final answer
x = 15,908,232.80
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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.