Finding the Fourth Proportional to 7,887,911.70, 11,828,368.35 and 3,629,385.30
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Solution
The fourth proportional to 7,887,911.70, 11,828,368.35 and 3,629,385.30 is: 5,442,467.90
Step by Step Solution
- Step 1: Write the proportion equation
7,887,911.70 : 11,828,368.35 = 3,629,385.30 : x - Step 2: Convert to fraction form
7,887,911.70/11,828,368.35 = 3,629,385.30/x - Step 3: Cross multiply
7,887,911.70x = 11,828,368.35 × 3,629,385.30 - Step 4: Simplify right side
7,887,911.70x = 42,929,706,212,475.25 - Step 5: Solve for x
x = 42,929,706,212,475.25/7,887,911.70 - Step 6: Final answer
x = 5,442,467.90
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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.