Finding the Fourth Proportional to 108,165,616.77, 149,275,874.70 and 61,106,368.60
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Solution
The fourth proportional to 108,165,616.77, 149,275,874.70 and 61,106,368.60 is: 84,330,925.99
Step by Step Solution
- Step 1: Write the proportion equation
108,165,616.77 : 149,275,874.70 = 61,106,368.60 : x - Step 2: Convert to fraction form
108,165,616.77/149,275,874.70 = 61,106,368.60/x - Step 3: Cross multiply
108,165,616.77x = 149,275,874.70 × 61,106,368.60 - Step 4: Simplify right side
108,165,616.77x = 9,121,706,622,692,208 - Step 5: Solve for x
x = 9,121,706,622,692,208/108,165,616.77 - Step 6: Final answer
x = 84,330,925.99
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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.