Finding the Fourth Proportional to 66,138,838.16, 91,261,583.42 and 37,876,816.71
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Solution
The fourth proportional to 66,138,838.16, 91,261,583.42 and 37,876,816.71 is: 52,264,272.61
Step by Step Solution
- Step 1: Write the proportion equation
66,138,838.16 : 91,261,583.42 = 37,876,816.71 : x - Step 2: Convert to fraction form
66,138,838.16/91,261,583.42 = 37,876,816.71/x - Step 3: Cross multiply
66,138,838.16x = 91,261,583.42 × 37,876,816.71 - Step 4: Simplify right side
66,138,838.16x = 3,456,698,267,674,331 - Step 5: Solve for x
x = 3,456,698,267,674,331/66,138,838.16 - Step 6: Final answer
x = 52,264,272.61
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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.