Finding the Fourth Proportional to 55,685,029.80, 76,845,865.64 and 31,239,268.68
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Solution
The fourth proportional to 55,685,029.80, 76,845,865.64 and 31,239,268.68 is: 43,110,485.03
Step by Step Solution
- Step 1: Write the proportion equation
55,685,029.80 : 76,845,865.64 = 31,239,268.68 : x - Step 2: Convert to fraction form
55,685,029.80/76,845,865.64 = 31,239,268.68/x - Step 3: Cross multiply
55,685,029.80x = 76,845,865.64 × 31,239,268.68 - Step 4: Simplify right side
55,685,029.80x = 2,400,608,643,675,140 - Step 5: Solve for x
x = 2,400,608,643,675,140/55,685,029.80 - Step 6: Final answer
x = 43,110,485.03
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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.