Finding the Fourth Proportional to 22,767,130.40, 31,418,639.96 and 12,313,146.66
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Solution
The fourth proportional to 22,767,130.40, 31,418,639.96 and 12,313,146.66 is: 16,992,142.39
Step by Step Solution
- Step 1: Write the proportion equation
22,767,130.40 : 31,418,639.96 = 12,313,146.66 : x - Step 2: Convert to fraction form
22,767,130.40/31,418,639.96 = 12,313,146.66/x - Step 3: Cross multiply
22,767,130.40x = 31,418,639.96 × 12,313,146.66 - Step 4: Simplify right side
22,767,130.40x = 386,862,321,616,136.31 - Step 5: Solve for x
x = 386,862,321,616,136.31/22,767,130.40 - Step 6: Final answer
x = 16,992,142.39
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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.