Finding the Fourth Proportional to 84,250,916.85, 126,376,375.28 and 79,212,068.85
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Solution
The fourth proportional to 84,250,916.85, 126,376,375.28 and 79,212,068.85 is: 118,818,103.28
Step by Step Solution
- Step 1: Write the proportion equation
84,250,916.85 : 126,376,375.28 = 79,212,068.85 : x - Step 2: Convert to fraction form
84,250,916.85/126,376,375.28 = 79,212,068.85/x - Step 3: Cross multiply
84,250,916.85x = 126,376,375.28 × 79,212,068.85 - Step 4: Simplify right side
84,250,916.85x = 10,010,534,139,296,738 - Step 5: Solve for x
x = 10,010,534,139,296,738/84,250,916.85 - Step 6: Final answer
x = 118,818,103.28
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.