Finding the Fourth Proportional to 289,081,707.07, 398,933,265.68 and 156,922,795.12
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Solution
The fourth proportional to 289,081,707.07, 398,933,265.68 and 156,922,795.12 is: 216,553,734.07
Step by Step Solution
- Step 1: Write the proportion equation
289,081,707.07 : 398,933,265.68 = 156,922,795.12 : x - Step 2: Convert to fraction form
289,081,707.07/398,933,265.68 = 156,922,795.12/x - Step 3: Cross multiply
289,081,707.07x = 398,933,265.68 × 156,922,795.12 - Step 4: Simplify right side
289,081,707.07x = 62,601,723,116,855,168 - Step 5: Solve for x
x = 62,601,723,116,855,168/289,081,707.07 - Step 6: Final answer
x = 216,553,734.07
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.