Finding the Fourth Proportional to 99,036,026.08, 149,265,898.96 and 85,367,957.09
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Solution
The fourth proportional to 99,036,026.08, 149,265,898.96 and 85,367,957.09 is: 128,665,550.93
Step by Step Solution
- Step 1: Write the proportion equation
99,036,026.08 : 149,265,898.96 = 85,367,957.09 : x - Step 2: Convert to fraction form
99,036,026.08/149,265,898.96 = 85,367,957.09/x - Step 3: Cross multiply
99,036,026.08x = 149,265,898.96 × 85,367,957.09 - Step 4: Simplify right side
99,036,026.08x = 12,742,524,857,417,556 - Step 5: Solve for x
x = 12,742,524,857,417,556/99,036,026.08 - Step 6: Final answer
x = 128,665,550.93
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These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.