Finding the Fourth Proportional to 67,382,611.76, 92,988,004.32 and 36,442,781.12
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Solution
The fourth proportional to 67,382,611.76, 92,988,004.32 and 36,442,781.12 is: 50,291,037.99
Step by Step Solution
- Step 1: Write the proportion equation
67,382,611.76 : 92,988,004.32 = 36,442,781.12 : x - Step 2: Convert to fraction form
67,382,611.76/92,988,004.32 = 36,442,781.12/x - Step 3: Cross multiply
67,382,611.76x = 92,988,004.32 × 36,442,781.12 - Step 4: Simplify right side
67,382,611.76x = 3,388,741,488,219,374 - Step 5: Solve for x
x = 3,388,741,488,219,374/67,382,611.76 - Step 6: Final answer
x = 50,291,037.99
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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.