Finding the Fourth Proportional to 237,966,620.72, 328,165,716.40 and 153,107,128.67
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Solution
The fourth proportional to 237,966,620.72, 328,165,716.40 and 153,107,128.67 is: 211,141,001.26
Step by Step Solution
- Step 1: Write the proportion equation
237,966,620.72 : 328,165,716.40 = 153,107,128.67 : x - Step 2: Convert to fraction form
237,966,620.72/328,165,716.40 = 153,107,128.67/x - Step 3: Cross multiply
237,966,620.72x = 328,165,716.40 × 153,107,128.67 - Step 4: Simplify right side
237,966,620.72x = 50,244,510,563,913,928 - Step 5: Solve for x
x = 50,244,510,563,913,928/237,966,620.72 - Step 6: Final answer
x = 211,141,001.26
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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.