Finding the Fourth Proportional to 38,830,943.48, 53,587,840.85 and 21,190,984.99
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Solution
The fourth proportional to 38,830,943.48, 53,587,840.85 and 21,190,984.99 is: 29,244,180.78
Step by Step Solution
- Step 1: Write the proportion equation
38,830,943.48 : 53,587,840.85 = 21,190,984.99 : x - Step 2: Convert to fraction form
38,830,943.48/53,587,840.85 = 21,190,984.99/x - Step 3: Cross multiply
38,830,943.48x = 53,587,840.85 × 21,190,984.99 - Step 4: Simplify right side
38,830,943.48x = 1,135,579,131,098,858.75 - Step 5: Solve for x
x = 1,135,579,131,098,858.75/38,830,943.48 - Step 6: Final answer
x = 29,244,180.78
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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.