Finding the Fourth Proportional to 75,076,177.60, 112,425,309.60 and 49,378,052.80
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Solution
The fourth proportional to 75,076,177.60, 112,425,309.60 and 49,378,052.80 is: 73,942,801.18
Step by Step Solution
- Step 1: Write the proportion equation
75,076,177.60 : 112,425,309.60 = 49,378,052.80 : x - Step 2: Convert to fraction form
75,076,177.60/112,425,309.60 = 49,378,052.80/x - Step 3: Cross multiply
75,076,177.60x = 112,425,309.60 × 49,378,052.80 - Step 4: Simplify right side
75,076,177.60x = 5,551,342,873,485,146 - Step 5: Solve for x
x = 5,551,342,873,485,146/75,076,177.60 - Step 6: Final answer
x = 73,942,801.18
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.