Finding the Fourth Proportional to 77,251,754.79, 115,872,940.26 and 27,399,046.05
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Solution
The fourth proportional to 77,251,754.79, 115,872,940.26 and 27,399,046.05 is: 41,096,904.98
Step by Step Solution
- Step 1: Write the proportion equation
77,251,754.79 : 115,872,940.26 = 27,399,046.05 : x - Step 2: Convert to fraction form
77,251,754.79/115,872,940.26 = 27,399,046.05/x - Step 3: Cross multiply
77,251,754.79x = 115,872,940.26 × 27,399,046.05 - Step 4: Simplify right side
77,251,754.79x = 3,174,808,026,132,639 - Step 5: Solve for x
x = 3,174,808,026,132,639/77,251,754.79 - Step 6: Final answer
x = 41,096,904.98
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.