Finding the Fourth Proportional to 368,907,489.68, 509,091,904.32 and 201,644,849.40
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Solution
The fourth proportional to 368,907,489.68, 509,091,904.32 and 201,644,849.40 is: 278,269,656.35
Step by Step Solution
- Step 1: Write the proportion equation
368,907,489.68 : 509,091,904.32 = 201,644,849.40 : x - Step 2: Convert to fraction form
368,907,489.68/509,091,904.32 = 201,644,849.40/x - Step 3: Cross multiply
368,907,489.68x = 509,091,904.32 × 201,644,849.40 - Step 4: Simplify right side
368,907,489.68x = 102,655,760,377,365,616 - Step 5: Solve for x
x = 102,655,760,377,365,616/368,907,489.68 - Step 6: Final answer
x = 278,269,656.35
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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.