Finding the Fourth Proportional to 66,411,402.21, 91,677,122.57 and 42,901,402.03
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Solution
The fourth proportional to 66,411,402.21, 91,677,122.57 and 42,901,402.03 is: 59,222,918.98
Step by Step Solution
- Step 1: Write the proportion equation
66,411,402.21 : 91,677,122.57 = 42,901,402.03 : x - Step 2: Convert to fraction form
66,411,402.21/91,677,122.57 = 42,901,402.03/x - Step 3: Cross multiply
66,411,402.21x = 91,677,122.57 × 42,901,402.03 - Step 4: Simplify right side
66,411,402.21x = 3,933,077,092,207,218 - Step 5: Solve for x
x = 3,933,077,092,207,218/66,411,402.21 - Step 6: Final answer
x = 59,222,918.98
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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.