Finding the Fourth Proportional to 76,974,792.79, 106,224,368.38 and 41,691,720.10
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Solution
The fourth proportional to 76,974,792.79, 106,224,368.38 and 41,691,720.10 is: 57,534,115.69
Step by Step Solution
- Step 1: Write the proportion equation
76,974,792.79 : 106,224,368.38 = 41,691,720.10 : x - Step 2: Convert to fraction form
76,974,792.79/106,224,368.38 = 41,691,720.10/x - Step 3: Cross multiply
76,974,792.79x = 106,224,368.38 × 41,691,720.10 - Step 4: Simplify right side
76,974,792.79x = 4,428,676,633,739,660 - Step 5: Solve for x
x = 4,428,676,633,739,660/76,974,792.79 - Step 6: Final answer
x = 57,534,115.69
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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.