Finding the Fourth Proportional to 15,781,137.42, 21,777,754.59 and 8,811,922.62
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Solution
The fourth proportional to 15,781,137.42, 21,777,754.59 and 8,811,922.62 is: 12,160,333.14
Step by Step Solution
- Step 1: Write the proportion equation
15,781,137.42 : 21,777,754.59 = 8,811,922.62 : x - Step 2: Convert to fraction form
15,781,137.42/21,777,754.59 = 8,811,922.62/x - Step 3: Cross multiply
15,781,137.42x = 21,777,754.59 × 8,811,922.62 - Step 4: Simplify right side
15,781,137.42x = 191,903,888,284,429.81 - Step 5: Solve for x
x = 191,903,888,284,429.81/15,781,137.42 - Step 6: Final answer
x = 12,160,333.14
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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.