Finding the Fourth Proportional to 126,321,883.68, 174,351,821.04 and 79,973,925.60
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Solution
The fourth proportional to 126,321,883.68, 174,351,821.04 and 79,973,925.60 is: 110,381,504.44
Step by Step Solution
- Step 1: Write the proportion equation
126,321,883.68 : 174,351,821.04 = 79,973,925.60 : x - Step 2: Convert to fraction form
126,321,883.68/174,351,821.04 = 79,973,925.60/x - Step 3: Cross multiply
126,321,883.68x = 174,351,821.04 × 79,973,925.60 - Step 4: Simplify right side
126,321,883.68x = 13,943,599,564,077,472 - Step 5: Solve for x
x = 13,943,599,564,077,472/126,321,883.68 - Step 6: Final answer
x = 110,381,504.44
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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.