Finding the Fourth Proportional to 121,875,790.32, 168,188,563.01 and 69,665,949.99
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Solution
The fourth proportional to 121,875,790.32, 168,188,563.01 and 69,665,949.99 is: 96,138,995.19
Step by Step Solution
- Step 1: Write the proportion equation
121,875,790.32 : 168,188,563.01 = 69,665,949.99 : x - Step 2: Convert to fraction form
121,875,790.32/168,188,563.01 = 69,665,949.99/x - Step 3: Cross multiply
121,875,790.32x = 168,188,563.01 × 69,665,949.99 - Step 4: Simplify right side
121,875,790.32x = 11,717,016,019,718,788 - Step 5: Solve for x
x = 11,717,016,019,718,788/121,875,790.32 - Step 6: Final answer
x = 96,138,995.19
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.