Finding the Fourth Proportional to 66,411,385.23, 91,677,099.11 and 42,901,385.14
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Solution
The fourth proportional to 66,411,385.23, 91,677,099.11 and 42,901,385.14 is: 59,222,895.65
Step by Step Solution
- Step 1: Write the proportion equation
66,411,385.23 : 91,677,099.11 = 42,901,385.14 : x - Step 2: Convert to fraction form
66,411,385.23/91,677,099.11 = 42,901,385.14/x - Step 3: Cross multiply
66,411,385.23x = 91,677,099.11 × 42,901,385.14 - Step 4: Simplify right side
66,411,385.23x = 3,933,074,537,416,591 - Step 5: Solve for x
x = 3,933,074,537,416,591/66,411,385.23 - Step 6: Final answer
x = 59,222,895.65
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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.