Finding the Fourth Proportional to 81,648,496.80, 122,378,266.80 and 33,102,345.60
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Solution
The fourth proportional to 81,648,496.80, 122,378,266.80 and 33,102,345.60 is: 49,615,214.49
Step by Step Solution
- Step 1: Write the proportion equation
81,648,496.80 : 122,378,266.80 = 33,102,345.60 : x - Step 2: Convert to fraction form
81,648,496.80/122,378,266.80 = 33,102,345.60/x - Step 3: Cross multiply
81,648,496.80x = 122,378,266.80 × 33,102,345.60 - Step 4: Simplify right side
81,648,496.80x = 4,051,007,681,542,606 - Step 5: Solve for x
x = 4,051,007,681,542,606/81,648,496.80 - Step 6: Final answer
x = 49,615,214.49
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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.