Finding the Fourth Proportional to 21,652,498.31, 29,880,446.99 and 11,863,313.15
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Solution
The fourth proportional to 21,652,498.31, 29,880,446.99 and 11,863,313.15 is: 16,371,371.77
Step by Step Solution
- Step 1: Write the proportion equation
21,652,498.31 : 29,880,446.99 = 11,863,313.15 : x - Step 2: Convert to fraction form
21,652,498.31/29,880,446.99 = 11,863,313.15/x - Step 3: Cross multiply
21,652,498.31x = 29,880,446.99 × 11,863,313.15 - Step 4: Simplify right side
21,652,498.31x = 354,481,099,495,626.12 - Step 5: Solve for x
x = 354,481,099,495,626.12/21,652,498.31 - Step 6: Final answer
x = 16,371,371.77
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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.