Finding the Fourth Proportional to 289,081,197.99, 398,932,558.94 and 156,922,284.05
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Solution
The fourth proportional to 289,081,197.99, 398,932,558.94 and 156,922,284.05 is: 216,553,026.50
Step by Step Solution
- Step 1: Write the proportion equation
289,081,197.99 : 398,932,558.94 = 156,922,284.05 : x - Step 2: Convert to fraction form
289,081,197.99/398,932,558.94 = 156,922,284.05/x - Step 3: Cross multiply
289,081,197.99x = 398,932,558.94 × 156,922,284.05 - Step 4: Simplify right side
289,081,197.99x = 62,601,408,327,996,768 - Step 5: Solve for x
x = 62,601,408,327,996,768/289,081,197.99 - Step 6: Final answer
x = 216,553,026.50
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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.