Finding the Fourth Proportional to 368,930,207.10, 509,123,709.42 and 201,667,130.84
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Solution
The fourth proportional to 368,930,207.10, 509,123,709.42 and 201,667,130.84 is: 278,300,653.47
Step by Step Solution
- Step 1: Write the proportion equation
368,930,207.10 : 509,123,709.42 = 201,667,130.84 : x - Step 2: Convert to fraction form
368,930,207.10/509,123,709.42 = 201,667,130.84/x - Step 3: Cross multiply
368,930,207.10x = 509,123,709.42 × 201,667,130.84 - Step 4: Simplify right side
368,930,207.10x = 102,673,517,721,349,280 - Step 5: Solve for x
x = 102,673,517,721,349,280/368,930,207.10 - Step 6: Final answer
x = 278,300,653.47
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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.