Finding the Fourth Proportional to 102,807,769.20, 154,463,596.20 and 77,298,601.20
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Solution
The fourth proportional to 102,807,769.20, 154,463,596.20 and 77,298,601.20 is: 116,137,331.02
Step by Step Solution
- Step 1: Write the proportion equation
102,807,769.20 : 154,463,596.20 = 77,298,601.20 : x - Step 2: Convert to fraction form
102,807,769.20/154,463,596.20 = 77,298,601.20/x - Step 3: Cross multiply
102,807,769.20x = 154,463,596.20 × 77,298,601.20 - Step 4: Simplify right side
102,807,769.20x = 11,939,819,922,581,634 - Step 5: Solve for x
x = 11,939,819,922,581,634/102,807,769.20 - Step 6: Final answer
x = 116,137,331.02
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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.