Finding the Fourth Proportional to 39,930,057, 55,103,478.62 and 21,595,342.48
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Solution
The fourth proportional to 39,930,057, 55,103,478.62 and 21,595,342.48 is: 29,801,572.60
Step by Step Solution
- Step 1: Write the proportion equation
39,930,057 : 55,103,478.62 = 21,595,342.48 : x - Step 2: Convert to fraction form
39,930,057/55,103,478.62 = 21,595,342.48/x - Step 3: Cross multiply
39,930,057x = 55,103,478.62 × 21,595,342.48 - Step 4: Simplify right side
39,930,057x = 1,189,978,492,638,257.75 - Step 5: Solve for x
x = 1,189,978,492,638,257.75/39,930,057 - Step 6: Final answer
x = 29,801,572.60
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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.