Finding the Fourth Proportional to 79,938,791.60, 110,269,486.41 and 48,126,816.26
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Solution
The fourth proportional to 79,938,791.60, 110,269,486.41 and 48,126,816.26 is: 66,387,284.64
Step by Step Solution
- Step 1: Write the proportion equation
79,938,791.60 : 110,269,486.41 = 48,126,816.26 : x - Step 2: Convert to fraction form
79,938,791.60/110,269,486.41 = 48,126,816.26/x - Step 3: Cross multiply
79,938,791.60x = 110,269,486.41 × 48,126,816.26 - Step 4: Simplify right side
79,938,791.60x = 5,306,919,311,538,637 - Step 5: Solve for x
x = 5,306,919,311,538,637/79,938,791.60 - Step 6: Final answer
x = 66,387,284.64
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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.