Finding the Fourth Proportional to 66,239,569.50, 99,370,147.17 and 19,557,774.05
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Solution
The fourth proportional to 66,239,569.50, 99,370,147.17 and 19,557,774.05 is: 29,339,847.78
Step by Step Solution
- Step 1: Write the proportion equation
66,239,569.50 : 99,370,147.17 = 19,557,774.05 : x - Step 2: Convert to fraction form
66,239,569.50/99,370,147.17 = 19,557,774.05/x - Step 3: Cross multiply
66,239,569.50x = 99,370,147.17 × 19,557,774.05 - Step 4: Simplify right side
66,239,569.50x = 1,943,458,885,801,555 - Step 5: Solve for x
x = 1,943,458,885,801,555/66,239,569.50 - Step 6: Final answer
x = 29,339,847.78
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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.