Finding the Fourth Proportional to 21,652,691.10, 29,880,713.06 and 11,863,506.16
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Solution
The fourth proportional to 21,652,691.10, 29,880,713.06 and 11,863,506.16 is: 16,371,638.14
Step by Step Solution
- Step 1: Write the proportion equation
21,652,691.10 : 29,880,713.06 = 11,863,506.16 : x - Step 2: Convert to fraction form
21,652,691.10/29,880,713.06 = 11,863,506.16/x - Step 3: Cross multiply
21,652,691.10x = 29,880,713.06 × 11,863,506.16 - Step 4: Simplify right side
21,652,691.10x = 354,490,023,452,502.44 - Step 5: Solve for x
x = 354,490,023,452,502.44/21,652,691.10 - Step 6: Final answer
x = 16,371,638.14
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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.