Finding the Fourth Proportional to 13,691,146.10, 18,893,063.70 and 7,495,005.74
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Solution
The fourth proportional to 13,691,146.10, 18,893,063.70 and 7,495,005.74 is: 10,342,714.90
Step by Step Solution
- Step 1: Write the proportion equation
13,691,146.10 : 18,893,063.70 = 7,495,005.74 : x - Step 2: Convert to fraction form
13,691,146.10/18,893,063.70 = 7,495,005.74/x - Step 3: Cross multiply
13,691,146.10x = 18,893,063.70 × 7,495,005.74 - Step 4: Simplify right side
13,691,146.10x = 141,603,620,783,220.31 - Step 5: Solve for x
x = 141,603,620,783,220.31/13,691,146.10 - Step 6: Final answer
x = 10,342,714.90
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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.