Finding the Fourth Proportional to 140,010,392.70, 209,952,603.45 and 53,720,120.70
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Solution
The fourth proportional to 140,010,392.70, 209,952,603.45 and 53,720,120.70 is: 80,556,014.32
Step by Step Solution
- Step 1: Write the proportion equation
140,010,392.70 : 209,952,603.45 = 53,720,120.70 : x - Step 2: Convert to fraction form
140,010,392.70/209,952,603.45 = 53,720,120.70/x - Step 3: Cross multiply
140,010,392.70x = 209,952,603.45 × 53,720,120.70 - Step 4: Simplify right side
140,010,392.70x = 11,278,679,198,613,236 - Step 5: Solve for x
x = 11,278,679,198,613,236/140,010,392.70 - Step 6: Final answer
x = 80,556,014.32
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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.