Finding the Fourth Proportional to 21,461,520.14, 29,616,611.58 and 11,671,753.62
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Solution
The fourth proportional to 21,461,520.14, 29,616,611.58 and 11,671,753.62 is: 16,106,864.35
Step by Step Solution
- Step 1: Write the proportion equation
21,461,520.14 : 29,616,611.58 = 11,671,753.62 : x - Step 2: Convert to fraction form
21,461,520.14/29,616,611.58 = 11,671,753.62/x - Step 3: Cross multiply
21,461,520.14x = 29,616,611.58 × 11,671,753.62 - Step 4: Simplify right side
21,461,520.14x = 345,677,793,532,061.19 - Step 5: Solve for x
x = 345,677,793,532,061.19/21,461,520.14 - Step 6: Final answer
x = 16,106,864.35
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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.